Answer:
5b - 0.9b is the equivalent expression and the distributive property is used.
Explanation:
The price of bread is marked down 18%. She purchases 5 loaves of bread. We need to rewrite the above expression.
The expression that is used to find the price of 5 loaves of bread is 5(b-0.18b).
We can use the distributive property to solve it as follows:
a(b+c) = ab + ac
Here, a = 5, b = b and c = -0.18b
5(b-0.18b) = 5(b) + 5(-0.18b)
= 5b - 0.9b
So, the equivalent expression is 5b - 0.9b. The distributive property was used to rewrite the expression.