A school purchased T-shirts to sell for a fundraiser. The school spent $684 for the T-shirts.
Each T-shirt will sell for $12.
Which equation can be used to find the number of T-shirts, x, the school has to sell to earn back the money it spent?

This week, conrad will work 1 3/4 times longer than last week. giovanni will work 1 1/3 times longer than last week. sally will work 2/3 the number of hours she worked last week. match each employee's name to the number of hours he or she will work this week

Through non-collinear points there is exactly one plane.

What is the value of x when x + 7 = 21?