A
Explanation: finding volume is a measure of how much space an object takes us.
Kiki wants to know how wide or how much space of her wall her window is taking up therefore the answer is A
Answer:
3/2 x 7/8 = (3×7)/(2×8)=21/16

solve for "a", to see what Africa's population will then be
Again, a^2+b^2=c^2
c=10
b=9
10 squared is 100
9 squared is 81
100-81=19
The square root of 19, rounded to the nearest hundredth, is 4.36