Given equations a and b as 2/5x+y=12 and 5/2y-x=6, respectively, which expression will elimimate the variable x

Write the inverse of the logarithmic function used to represent the situation in model 1, f(x)=3+2in x . express the answer in radical form.

If sec theta = 5/3 and the terminal point determined by theta is in quadrant 4, then

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