Answer:
530.66 cm²
Step-by-step explanation:
First, since the formula for the area of a ball is r² x 3.14, you multiply 13 by itself. Since 13x13 is 169, you do 3.14x169. Your answer should be 530.66 cm². (i don't know what the other one is, or if it's just a separate question.)
the answer is 36 years old
first you would put them in an equation like this... 41-5
then you would subtract them and get 36 years old
5x=55
Divide both sides by 5 to solve for x
5x/5=55/5
x=11
i don't sorry thanks for the points though
