If A andB are supplementary, find the value of X, M and A and M and B

M A = 2x. M B = x-15

If f(x)=2x-6 and g(x)=3x+9, find (f-g)(x)

Marla bought a book for $12.95, a binder for $3.49, and a backpack for $44.99. the sales tax rate is 6%. find the amount of tax and the total she paid for these items

`if you have a set of parallel lines a and b cut by transversal x, if angle 1 = 167 degrees, what is angle 4 and why. also what is the measure of angle 5 and why? you need to use the names of the angle relationship and explain. ''.