Solve the system of equations by adding. Check your answer. S2x +2y = -6 3x - 2y = 21 The solution of the system is can you help me understand it?​

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

Lola says these two expressions have the same value. expression a expression b which explains whether lola is correct?

For the inequality |c| < |d| to be true, which of the following must be true?