Lucas and his sister luisa are saving to buy a birthday present for their mother. the present costs $95. lucas earns $16 per week running errands for neighbors and spends $7 of it. luisa earns $24 per week babysitting and spends $12 of it. which expression can be used to find how many weeks it will take to save for the present? a 95 ÷ [(16 + 7) − (24 − 12)] b 95 ÷ [(16 + 7) − (24 + 12)] c 95 ÷ [(16 − 7) + (24 − 12)] d 95 ÷ [(16 − 7) + (24 + 12)]

Awater truck is filling a swimming pool. the equation that represents this relationship is y=19.75x where y is the number of gallons of water in the pool and x is the number of minutes the truck has been filling the pool.

Melanie is buying a bathing suit that costs 39.99. she is given a discount at the cash register of $6.00 when she scratched 15% off on a game piece for a store promotion. what will the sale price of melanie’s bathing suit be?

The height of a birch tree, f(x), in inches, after x months is shown in the graph below. how much does the birch tree grow per month, and what will be the height of the birch tree after 10 months? a. the birch tree grows 1 inch per month. the height of the birch tree will be 16 inches after 10 months. b. the birch tree grows 2 inches per month. the height of the birch tree will be 26 inches after 10 months. c. the birch tree grows 3 inches per month. the height of the birch tree will be 36 inches after 10 months. d. the birch tree grows 2 inches per month. the height of the birch tree will be 24 inches after 10 months.