Solve the system of the following equations:
x+3y=-1
2x+2y=6
(-4,1)
(2,-1)
(4,-1)
(5,-2)

Satchi found a used bookstore that sells pre-owned dvds and cds. dvds cost $9 each, and cds cost $7 each. satchi can spend no more than $45.

Two variables, x and y, vary inversely, and x=12 when y=4. what is the value of y when x=3?

Awoman has 14 different shirts: 10 white shirts and 4 red shirts. if she randomly chooses 2 shirts to take with her on vacation, then what is the probability that she will choose two white shirts? show your answer in fraction and percent, round to the nearest whole percent.