Factor by using the​ perfect-square trinomial formula. 20x^2+105x-245

when Ms. Thelma turned on her oven, the temperature inside was 70 degrees F. The temperature began to rise at a rate[..]

The total of Megan's writing and math scores on the SAT was 1094. her math was 248 points higher than her writing score.

Two supplementary angles are such that twice on angle is 7 degrees more than the other supplementary angles are[..]

3/5 of a conductors club went on the last camping trip. If 39 people went on the trip, how many are in the club?

If almonds sell at $3.60 a pound and walnuts for $2.25, how many pounds of each are needed to make a mix of 45[..]

A stadium manager spends $50,000 on TV ads and $37,000 on cable TV ads. What percentage of his advertising[..]

A promoter buys advertising in units of $25,000 each. If he buys three units of broadcast TV, two units of cable TV,[..]

how many ways can a student pick 5 questions from an exam containing 12 questions?

If you are buying at item at a store for a price of $43, and there is a 8% tax added on top, what would be the total[..]