F. 30 is the correct answer, for mean you just have to add all the ages together and divide by the number of customers
In order to do this you first have to solve the parenthesis. Why because the pemdas tells you so, first parenthesis then exponents then multiplication then division then addition and then subtraction. So first subtract 7 from 9 to get (2)^-3 now multiply 2 3 times. -2*-2*-2 to get -8
Hope this helps
Answer:
Step-by-step explanation:
the shape is made up of 2 circles and one box add the 3 areas up
circle area = 

3.14*
= 50.24
50.24*2 =100.48
box, box, pit now :P ooh I was thinking formula one racing, ( i've been watching that lately) anyway
box = 8*8 = 64
total = 164.48 is that an option? hmm, yes the bottom two choices.. now the perimeter . the perimeter is made up of the 2 circles
the circumference of a circle is 2
r
2*
*r
2*
*4 =25.1327 that's one whole circle , multiplied by 2 , I can see , by math in my head that's about 50.26
sooo
the 3rd choice looks good :)
R = 3
6x3=18
18x3=54
54x3=162 ...