Helps pleasee 20 points

What is the exact volume of the cylinder (radius 13 in., height 30 in.)

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.

Marco has $38.43 dollars in his checking account. his checking account is linked to his amazon music account so he can buy music. the songs he purchases cost $1.29. part 1: write an expression to describe the amount of money in his checking account in relationship to the number of songs he purchases. part 2: describe what the variable represents in this situation.