Find f(-10) f(x)=7x-5

Tamera puts 15/4 gallons of gasoline in her car. which mixed number represents the gallons of gasoline? a) 2 3/4 gallons b) 3 1/4 gallons c) 3 3/4 gallons d) 4 1/2 gallons answer it's worth a lot of points!

The parabola y = x² - 4 opens: a.) up b.) down c.) right d.) left

Atriangle with all sides of equal length is a/an triangle. a. right b. scalene c. equilateral d. isosceles