Math ACT

When x = 3 and y = 5, by how much does the value of 3x^2 - 2y exceed the value of 2x^2 - 3y ?

14, 3(3)^2 - 2(5) equals 17 and 2(3)^2 - 3(5) equals 3

A car averages 27 miles per gallon. If gas costs $4.04 per gallon, which of the following is closest to how much the gas would cost for this car to travel 2,727 typical miles?

408.04, 2727/27=101 then 101x4.04.

What is the greatest common factor of 42, 126, and 210 ? A -2 B-6 C-14 D - 42

42, other options diding match

What is the value of x when 2x + 3 = 3x - 4 ?

7, isolate x

Sales for a business were 3 million dollars more the second year than the first, and sales for the third year were double the sales for the second year. If sales for the third year were 38 million dollars, what were sales, in millions of dollars, for the first year? A - 16 B - 17.5 C - 20.5

A - 16, plug in possible answers