What’s the question your asking here ?
Because

and

are inversely proportional, there is some constant

such that

Given that

and

, we have

So when

, you have
Gas mileage is the number of miles you can drive on a gallon of gasoline.A test of a new car results in 330 miles on 10 gallons of gas.how far could youdrive on 65 gallons of gas?what is the car's mileage?
u would multiply 330 and 6
then divide 330 in half
330x6=1980
330/2=165
then add those together
and u would get 2145
PEMDAS
57 - 12/4 x 3 = 57 - 3 x 3 = 57 - 9 = 48
One apple costs $1.17
Hope this helps!!