Help please can’t figure out answer

Examine the following sets of events. set a: {1, 5, 7, 9, 14} set b: {2, 5, 6, 8, 14, 17} which of the following represents the intersection of set a and set b ? {∅} {5, 14} {1, 2, 5, 6, 7, 8, 9, 14, 17} {1, 2, 6, 7, 8, 9, 17}

∆red ≅ ∆ by rule will give brainiest if possible

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