Tim is building a brick wall that will be 4 feet
high and 57 feet long. it takes 7 brick to build 1 square foot of wall
(area = length x width)
approxitaotch how many bricks will he use for the entire building?

The table shows the balance of a money market account over time. write a function that represents the balance y (in dollars) after t years.

Icould really use some with this question.

Asales representative from a local radio station is trying to convince the owner of a small fitness club to advertise on her station. the representative says that if the owner begins advertising on the station today, the club's total number of members will grow exponentially each month. she uses the given expression to model the number of club members, in hundreds, after advertising for t months.