Answer:
A
Step-by-step explanation:
When you distribute values, 'a' while be multiplied by everything. since there is a plus sign in front of the 'b' then that will not be distributed. so an 'ab' will add the an 'ac' but an 'ad' is still going to subtract away from the equation.
(PI* radius^2 * height) / 3
Volume = PI * 49 * 9 / 3
Volume = 461.8141200777 cubic feet
Volume = 461.81 cubic feet (rounded)
PEMDAS
parenthesis
exponents
multiplication
division
addition
subtraction
9-7-6/6
first 6/6=1
9-7-1
9-7=2
2-1=1
answer is 1
+3 and -4
as
+3×-4=-12
and
-4+3=-1