What are the rational zeros of the function f(x)=x^3+3x^2-x-3

Which shows the correct solution of the equation 1/2a+2/3b=50, when b=30?

Asales representative from a local radio station is trying to convince the owner of a small fitness club to advertise on her station. the representative says that if the owner begins advertising on the station today, the club's total number of members will grow exponentially each month. she uses the given expression to model the number of club members, in hundreds, after advertising for t months.

Afamily went out to dinner and their bill was $113.if they want to leave a 19% tip, how much should they leave.