Answer: 55
Step-by-step explanation:
Let the number of cars washed last year be denoted as x.
This year, he washed 14 fewer cars than during last year's car wash. This will be denoted as x-14.
We can then represent them in an equation as:
x + (x - 14) = 96
2x - 14 = 96
2x = 96 + 14
2x = 110
x = 110/2
x = 55
Therefore, he washed 55 cars this year
So... hmmm if you check the first picture below, for 2)
we could use the proportions of those small, medium and large similar triangles like

now.. for 3) will be the second picture below
39 it's an arithmetic sequence in which the common difference is +7
Answer: 8(4) - 10 equals to 22 :)