Two angles create a straight line. The angles measure (5x-18)° and (4x + 45)° Find the value of x

And employee salary increased by $4500 which represents a 15% raise what is the rate of the increase

Me asap on # : explain how factoring a trinomial, ax^2+ bx+ c, when a does not equal 1 different from factoring a trinomial when a = 1.

Sundar used linear combination to solve the system of equations shown. he did so by multiplying the first equation by 5 and the second equation by another number to eliminate the y-terms. what number did sundar multiply the second equation by? 2x+9y=41 3x+5y=36