A traveler has 8 pieces of luggage. How many ways can he select 4 pieces of luggage for a trip

Determine the intercepts of the line that passes through the following points. (15,-3)(15,−3) (20,-5)(20,−5) (25,-7)(25,−7)

Find the x-intercepts for the parabola defined by this equation: y=-3x^2-6x+9

Maria has $10,000 to invest in two accounts.he decides to invest one part in an account with 5% interest and the rest in an account with 8% interest. at the end of the year he has earned $702,50 in interest.¿how much did maria invest in the 8% account?