Which of the following is the x coordinate of the solution to the system shown below 2x + y = 17 x - y = 4

15m is what percent of 60m; 3m; 30m; 1.5 km? the last one is km not m

Factor the polynomial, if possible. if the polynomial cannot be factored, write prime. 9n^3 + 27n^2 – 25n – 75

Arock was dropped from the top of a building. the function that describes the height after it was dropped is f(x)=64-16x^2. what are the zeros of the function and what do they mean?