the plant in front of the house, grew 3.75 inches each week for 4 weeks. and the plant in the back of the house, grew 4 inches each week for 5 weeks. but since the plant in the back of the house was 5 weeks and the one in the front had 4 weeks. you would calculate each plant for the same amount of weeks. so if you would have done 20/4 and 15/4 or 20/5 and 15/5, the plant in the back would have grown fatser then the one in the front.
work:
15/4=3.75
20/5=4
20/4= 5
15/5= 5
17. 4n-8=5
8+5=13
13/4=3.25
n=3.25
18. n/2+ 5=15
15-5=10
10*2=20
n=20
19. 5v-42=73
73+42=115
115/5=23
v=23
20. 3d-13=11
11+13=24
24/3=8
d=8
Hope I helped☺☺
<span> The first 10 digits are 3.141592653</span>
I saw A and D but am not exactly sure. I am sure of the D tho