Asporting goods store sells 3 fishing reels and 4 fishing rods for $523. later, they sell 9 fishing reels and 3 fishing rods for $507. find the price of each item.

Can someone me with my hwplz(only the circled ones)

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

21 type the correct answer in the box. use numerals instead of words. if necessary, use / for the fraction bar. the solution set of n2 - 14n = -45 is { (separate the solutions with a comma)