When a number Is decreased by 20% of itself, the result is 24. What is the number?

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!

Solve each quadratic equation by factoring and using the zero product property. 10x + 6 = -2x^2 -2

Which of the following pair(s) of circles have las a common external tangent? select all that apply. a and b a and c b and c