Question says that Wong’s Garage buys quarts of motor oil by the gross (144 units) for $0.75 per quart.
That means cost of 1 quart motor oil = $0.75
Now it says that Wong’s changes the oil in customers’ cars and marks up the oil 175% of the cost.
So that means selling price of the 1 quart of the motor oil
= 175% of original price
= 175% of 0.75
= 1.75* 0.75
= 1.3125
Which is approx $1.31
Hence final answer is $1.31
The answer for this would be 23.4.
This is because 1.3 = 1 mile. Therefore you should do 1.3 x 18
which equals 23.4!
Old
9.99×55
=549.45
New
10.68×55
=587.4
((10.68÷9.99)−1)×100
=6.9%

hmm, seems that we can say that the square root thing is the g(x)
I would say

and

we could also have

and

or

and

there are many posibilities