Answer:
8
Step-by-step explanation:
12+4=16
16 divided by 2= 8
Answer:
12%
Step-by-step explanation:
Cost Price of the MP3 player =$150
Sales Tax = 8 %
Total sales tax= Tax * Cost Price
= 
=12%
He payed a total of 12% sales tax
Let the number be x.
4x - 8 =12
4x =12 +8 ( you bring the eight over to the 12, it becomes positive )
4x = 20
x = 20÷4
x = 5
Set up the proportion as follows:
, then cross multiply to solve.

4(24) = 6(x)
4(4) = x <em>(divided both sides by 6)</em>
16 = x
Answer: 16 ft