Answer:

28

Step-by-step explanation:

8÷2=4

4×7=

So 28 is the answer

Answer:

8:2 = x:7

*multiply the means and extremes

8 × 7 = 56

2 × x = 2x

*since proportion can be also written as fraction, divide both sides by 2

28 = x

* 8:2 = 28:7 ( there are 8 wheels in 2 cars and 28 wheels in 7 cars )