13. Dimitri currently has $1,450 in his bank account and Jana has $1,600 in her bank account. Dimitri deposits $27.50 per week and Jana deposits $20 per week into their accounts. After
how many weeks will they have the same amount of money? Write an equation to solve.

Simplify. (-2)^-3 a. -8 b. -1/8 c. 1/8 d. 8

Find the average rate of change for the given function drom x=1 to x=2

The students at jefferson middle school are raising money for a charity by selling t-shirts and hats. the number of t-shirts sold was 3 times the number of hats. the profit was $5 for each t-shirt sold and $2.50 for each hat sold. the students raised $840 for the charity. they used the system below to analyze their success and found the solution to be (144, 48). 5x+2.50y=840 x=3y how much did they earn from t-shirt sales?