First let us convert 0.01 into fraction:

Now we convert 100 and 4 into perfect squares as follows:

Now we use the property of :


The Tenth number percentage
I will give u the steps
add up all of the values
then when you find the total lets say its 100% then total percent of cars would be 32%
Answer:
51+(4x+7)=90
4x+58=90
-58 -58
4x=32
4x/4=32/4
x=8
Step-by-step explanation: