Solve the following problem.
alex and max had lunch together at a restaurant. they left a 15% tip of $3.90. if alex's lunch was $14, write an equation you can use to find m, the cost of max's lunch.

F(n + 1) = f(n) – 8. if f(1) = 100, what is f(6)?

Solve the problem. a student earned grades of c, a, b, and a in four different courses. those courses had these corresponding numbers of credit hours: 4, 5, 1, and 5. the grading system assigns quality points to letter grades as follows: a = 4, b = 3, c = 2, d = 1, and f = 0. compute the grade point average (gpa) and round the result to two decimal places. 3.40 3.50 8.75 2.18

How do you do the foil method with polynomials?