Evaluate the expression: -4a2 + 3ab - (2a + 3b) if a = 1/4 and b = -12 Enter answer as a decimal.

Mikes car gets an average of 28 mpg. there are 12 gallons of fuel in mikes car when he starts his trip of 140 miles. about how many gallons are left at the end of his trip?

The function f(x) is shown in this graph the function g(x)=6x

Astudent draws two parabolas both parabolas cross the x axis at (-4,0) and (6,0) the y intercept of the first parabolas is (0,-12). the y intercept of the second parabola is (0,-24) what is the positive difference between the a values for the two functions that describe the parabolas