The number of people contacted at each level of a phone tree can be represented by f(x) = 3x, where x represents the level. what is x when f(x) = 27?
a. x = 9; at level 9, 27 people will be contacted.
b. x = 2; at level 2, 27 people will be contacted.
c. x = 24; at level 24, 27 people will be contacted.
d. x = 3; at level 3, 27 people will be contacted.

Rectangle pqrs has length a and width 4b. the x-axis bisects ps and qr what are the coordinates of the vertices

The swimming pool is open when the high temperature is higher than 20∘c. lainey tried to swim on monday and thursday (which was 3 days later). the pool was open on monday, but it was closed on thursday. the high temperature was 30∘c on monday, but decreased at a constant rate in the next 3 days. write an inequality to determine the rate of temperature decrease in degrees celsius per day, d, from monday to thursday.

Find the solution(s) to the system of equations. select all that apply y=x^2-1 y=2x-2