Which function has a vertex on the y-axis? RE
f(x) = (x - 2)2
O f(x) = x(x + 2)
f(x) = (x - 2)(x + 2)
Of(x) = (x + 1)(x - 2)

Cora bought a package of erasers. there are 4 pink erasers and 12 blue erasers. what is the ratio of pink erasers to blue erasers?

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.

Cos^2x+cos^2(120°+x)+cos^2(120°-x)i need this asap. pls me