Astore is having a sale on dvds and cds. dvds cost $4 and cds cost $7. on one day, the store made $204 from dvd and cd sales, and sold a total of 39 items. write a system of equations, then solve to find how many dvds and cds were sold.

Identify the number 127 as a rational or irrational. explain

What else equals 42 and 30 for multiply

Sanderson is having trouble with his assignment. his shown work is as follows: − 3 7 7 3 = − 3 7 × 7 3 = − 21 21 = −1 however, his answer does not match the answer that his teacher gives him. complete the description of sanderson's mistake. find the correct answer.