Answer:
f=9
9 squared = 81
81-81=0
Step-by-step explanation:
Answer:
a I think please be right
12 × 5 = 60
12 nickels
10 × 2 = 20
2 dimes
60 + 20 = 80
Answer:
1200 cm²
Step-by-step explanation:
width = x cm
length = 3x cm
perimeter = 160 cm
2(x + 3x) = 160
4x = 160/2
4x = 80
x = 80/4
x = 20 cm - width
length = 3x = 3 · 20 = 60 cm
Area = length · width = 60 · 20 = 1200 cm²
