Suppose that the functions r and a are defined for all real numbers x as follows. r(x)=2x-1 s(x)=5x write the expressions for (r-s)(x)and(r•s)(x)and evaluate(r+).

Atotal of 766 tickets were sold for the school play. they were either adult tickets or student tickets. there were 66 more student tickets sold than adult tickets. how many adult tickets were sold?

Juanita wade's new car has an msrp of $28,902.11 including title and processing fees. the premier package which includes surround sound and dvd player costs three times the amount of the in-style package which includes leather seats and select wheels. the total cost of her new car was $34,290.08 which included the 6.5% sales tax. find the cost of the premier package to the nearest cent.

What is the measure of angle lkj ? round to the nearest whole degree