While driving up a road, Philip passed through 5 intersections. 4 crosswalks marked each intersection with a total of 20 lines per crosswalk. Calculate the total number of lines of the crosswalks in the five intersections.

If one intersection has 4 crosswalks, with 20 lines per crosswalk, there are 20*4 =

<<20*4=80>>80 lines in all the crosswalks per intersection. If there are 5 intersections, the total number of lines in all the intersections is 80*5 = <<80*5=400>>400 lines #### 400 Delores has $450. She buys a computer for $400 and a printer for $40. How much money, in dollars, does Delores have left? The computer and printer cost 400+40=<<400+40=440>>440 dollars. Delores has 450-440=<<450-440=10>>10 dollars left. #### 10 Jared wants to watch a series with four episodes. The first three episodes are 58 minutes, 62 minutes, and 65 minutes long respectively. If the four episodes last 4 hours, how long is the fourth episode? The first three episodes are 58 + 62 + 65 = <<58+62+65=185>>185 minutes long. In minutes, the four episodes last 4 x 60 = <<4*60=240>>240 minutes. Then, the fourth episode is 240 - 185 = <<240-185=55>>55 minutes long. #### 55 During 5 hours, a spider can catch 9 flies. How many flies would this spider catch in 30 hours if he would keep his efficiency? 30 hours is 30 / 5 = <<30/5=6>>6 times more time. So the spider would be able to catch 6 * 9 = <<6*9=54>>54 flies. #### 54 Dante needs half as many cups of flour to bake his chocolate cake as he needs eggs. If he uses 60 eggs in his recipe, calculate the total number of cups of flour and eggs that he uses altogether. Dante needs half as many cups of flour to bake his chocolate cake as he needs eggs, meaning he needs 60/2 = <<60/2=30>>30 cups of flour for his recipe. Altogether, Dante needs 30+60 = <<30+60=90>>90 eggs and cups of flour for his recipe. #### 90 Tilly counts 120 stars to the east of her house and six times that number to the west. How many stars does she count total? First find the total number of stars she saw in the west: 120 stars * 6 = <<120*6=720>>720 stars Then add the number she saw in the east to find the total number: 720 stars + 120 stars = <<720+120=840>>840 stars #### 840 Delores has some money. She buys a computer for $400 and a printer for $40. If she has $10 left, how much money, in dollars, did Delores have at first? The computer and printer cost 400+40=<<400+40=440>>440 dollars. Delores had 440+10=<<440+10=450>>450 dollars at first. #### 450 Marcus has three times as many cheese crackers as Mona. Nicholas has 6 more crackers than Mona. If Marcus has 27 crackers, how many crackers does Nicholas have? Mona has 27 / 3 = <<27/3=9>>9 cheese crackers. Nicholas has 9 + 6 = <<9+6=15>>15 cheese crackers. #### 15 The ratio of boys to girls in a math class is 5:8. How many girls are in the class if the total number of students in the class is 260? If the ratio of boys to girls in the math class is 5:8, the total ratio of the number of boys and girls in the math class is 5+8 = <<5+8=13>>13. The fraction that represents the number of boys in the class is 5/13, and since there are 260 students in the class, the number of boys in the class is 5/13*260 = <<5/13*260=100>>100. The number of girls in the class is 260-100 = <<260-100=160>>160. #### 160 Lemuel is a basketball player. In one of the games, he made 2-point shots 7 times. He also made 3-points shots thrice. How many points, in total, did he make in that game? Lemuel made 2 x 7 = <<2*7=14>>14 points from his 2-point shots. He also made 3 x 3 = <<3*3=9>>9 points from his 3-point shots. Therefore, he made a total of 14 + 9 = <<14+9=23>>23 points in that game. #### 23