Solve the linear equation below using the substitution method

x-3y=7
2x+3y=9

In the diagram of circle a what is m

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.

Consider circle c with angle acb measuring 3/4 radians. if minor arc ab measures 9 inches, what is the length of the radius of circle c? if necessary, round your answer to the nearest inch.