Matthew has already baked 7 cakes, and he can bake 1 cake with each additional stick of butter he buys. How many additional sticks of butter does Matthew need in order to bake a
total of 31 cakes?

Charlene's parents deposit $500 in an account on the day she is born. the account earns a high interest rate of 9.2% compounded quarterly because charlene is not allowed to access the money until her 22nd birthday. how much money will charlene have on her 22nd birthday? a: $3,698.50 b: $5,921.31 c: $101,200 d: $ 824.58