Answer:
No te puedo entender lo siento
total hours in 3 days= 72
total %= 9/72*100
= 100/8
= 12.5% ans.... HOPE IT HELPS
Answer:
x = 45
Step-by-step explanation:
Corresponding sides of similar triangles will be in same ratio.

Cross multiply
x*28 = 20*(x+18) {Use distributive method}
28x = 20x + 360
28x - 20x = 360
8x = 360
x = 360/8
x = 45
140 / 100 * X = 56
X = 56 * 100 / 140 = 5600 / 140 = 40