1) a student uses the substitution method to solve the system of equations below algebraically.

2x - y = 5
3x + 2y = -3

which equivalent equation could be used?

(a) 3x + 2(2x - 5) = -3
(b) + 2(5 - 2x) = -3
(c) 3(y + 5/2) + 2y = -3
(d) 3(5/2 - y) + 2y = -3

Abucket of paint has spilled on a tile floor. the paint flow can be expressed with the function p(t) = 6(t), where t represents time in minutes and p represents how far the paint is spreading. the flowing paint is creating a circular pattern on the tile. the area of the pattern can be expressed as a(p) = 3.14(p)^2 part a: find the area of the circle of spilled paint as a function of time, or a[p(t)]. show your work. part b: how large is the area of spilled paint after 8 minutes? you may use 3.14 to approximate pi in this problem.