Answer:
the answer is A
Step-by-step explanation: because the way you work out problems with parenthesis is Parenthesis Exponents Multiplication Division Adding Subtraction and what ever id in the parenthesis comes first
A is the correct answer as you should always do the expression that’s in parentheses first
Step-by-step explanation:
18/60-12/60= 4 miles
just my guess
a = d + r + c
a - c + c = d + r + c
Then
which is a disk of radius 1, hence with area .