39. 13x3.....................
Answer: 20
Step-by-step explanation: just do 100/5=20 so do 100/20=5 hope this helps!!
Answer:
30 x 3 - 80 is 10
Step-by-step explanation:
Answer is 28 inches.
A square has equal sides and to find the perimeter, you add all the sides.
7 x 4 = 28
Answer:
10x + 9
Step-by-step explanation:
-1 - (-10x - 10)
Distribute.
-1 + 10x + 10
10x + 9