The answer is A because you just multiply the fraction outside of the parenthesis into the fraction within and subtract the two numbers and reduce.
Divide 3/4 which is 0.75 and then multiply that by 20 which is 15 Final answer:15
Answer:
y = 8(.88)^x
y = 4.221855 for the fifth reduction
Step-by-step explanation:
We can use the formula
y =ab^x
where a =the initial value
b= 1 -percent decrease
a = 8 inches
b = 1-12%
= 1-.12
= .88
y = 8 (.88)^x
The fifth reduction is
y = 8 (.88) ^5
y = 4.221855