Find the x-intercent(s) and the coordinates of the vertex for the parabola y = -x + 2x + 15. If there is more than one x-intercept, separate them with commas

Agraph of a trapezoid can have diagonals with slopes that are negative reciprocals and two pairs of adjacent sides that are congruent, true or false, and why

Boris needs to buy plastic spoons. brand a has a box 42 spoons for $2.37. brand b has a box of 72 spoons for $3.57. find the unit price for each brand. then state which brand is the better buy based on the unit price. round your answer to the nearest cent.

For f(x) = 3x+1 and g(x) = x2 - 6, find (g/f)(x)