Astore sells new dvds for $12 each. used dvds sell for $7 each. joseph is buying two new dvds and x used dvds. write an equation that can be used to find x, the total joseph must pay in dollars

Me ! write an equation for the interior angles of this triangle that uses the triangle sum theorem

In the following situation, determine whether you are asked to determine the number of permutations or combinations. then do the calculation how many ways are there to pick a starting five from a basketball team of twelve members? a. permutation; ps - 2520 b. combination; 1c, - 792 c. combination: 2cs - 2520 d. permutation; ps - 95040

Asap! i'm not good math and i'm lost.