ANSWER
The radius is 4
EXPLANATION
The given equation is:

We complete the square to get the expression in standard form:


We factor using perfect squares to get:

This implies that,

Comparing to

The radius is r=4
the answer is 10! because 7*10= 70
Answer:
F
Step-by-step explanation:
if you do the math you end up with 49 which is a perfect square of 7
Answer:
1
Step-by-step explanation:
18 * 5 = 90
90 represents 100%, because there are 5 20% in 100%
In total there are 90 club members
80% = 71 do not have birthdays in the summer.