Answer:
<h2><em><u>9</u></em></h2>
Step-by-step explanation :



= <em><u>9(Ans)</u></em>
<u>Expression Form</u>
(3-7)*n+5
n=Unknown Number
Answer:
try b=32
Step-by-step explanation:
Answer:
87.92 in²
Step-by-step explanation:
pi × (R² - r²) = area
Where R is the radius of the outer circle and r of the inner circle.
Since C = 2pi×r
37.68 = 2×3.14×r
r = 6 in
R = 6 + 2 = 8 in
Therefore,
pi × (R² - r²) = area
Area = 3.14 (8² - 6²)
= 87.92 in²