128 = 128 cause u add them
171/9=19mph hope it helps
D. 4.81 x 10^13
Move the decimal to the right 13 times, because when you multiply by 10, you make the number bigger, when you divide you move the decimal to the left to make the number smaller.
48,100,000,000,000
Answer:

Step-by-step explanation:
given the ratio of similar sides = a : b , then
ratio of areas = a² : b²
Given
ratio of sides = 5 : 3 , then
ratio of areas = 5² : 3² = 25 : 9 = 