Which statement about dilation and rotation is true?
a. dilation preserves angle, but rotation does not.
b. rotation preserves angle, but dilation does not.
c. both dilation and rotation preserve angle.
d. neither dilation nor rotation preserves angle.

The administrator of a large assisted living facility wanted to know the average age of the residents living at the facility. he randomly selected 12 residents and determined their age, listed here: 80, 65, 75, 83, 68, 73, 88, 79, 94, 72, 79, 68 what's the average age of the sample of residents? a. 79 years old b. 68 years old c. 75 years old d. 77 years old

At $1.32 million, they closed last month percent above what they paid in 2007." how much did they pay in 2007?

Solve each quadratic equation by factoring and using the zero product property. n^2 - 49 = 0