Use any model you choose to solve the story problem.
a single board is meter thick.
how many boards are there in a stack of boards that is 2 meters high?

On a string instrument, the length of a string varies inversely as the frequency of its vibrations. an 11-inch string has a frequency of 400 cylces per second. find the frequency of a 10-icnch string.

Consider that lines b and c are parallel. what is the value of x? what is the measure of the smaller angle?

Diane’s bank is offering 5% interest, compounded monthly. if diane invests $10,500 and wants $20,000 when she withdrawals, how long should she keep her money in for? round to the nearest tenth of a year.