Lisa is four years younger than her sister. Which expression stands for the sum of Lisa’s age and her sister’s age?

A jazz concert brought in $156,343 on the sale of 8,697 tickets. If the tickets are sold for $10 and $20 dollars, how many of the $10 dollar ticket were sold?

Alice saved $2900. She saved $1567 less then her brother. How much did her brother save?

In golf, scores that are under par for the entire round are shown as negative scores; positive scores are shown for scores that are over par, and 0 is par.  Austin Ernst was the winner of the 2014 Portland Classic in Oregon. Her scores were -3, -3, -3, and -5. Whatwas her overall score?