Answer:
a. 16
b. 343
hope this helps
24.9π
Step-by-step explanation:
Curcle Area=πR^2
A= πR^2 × 140°/360°
A= π×8^2 × 0.389 =~ 78.15
without brackets, the two is only multiplying the a. with brackets, you distribute the 2, making the equation 2a+10
Just took the quiz hopefully this helps!
