One angle of a linear pair is four times the other, find these angles.​

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 f(x) = x+8 and g(x) = 4x- 3, find (f+g)(x)

Which of the following is the explicit rule for a geometric sequence defined a recursive formula of a -5a for which the first term is 23?