Which explains the necessary step to calculate the area of a semi-circle? O Pi times the diameter.
O Radius times Radius times Pi
O (Radius times Radius times Pi) divided by 2
O (Diameter times Pi) divided by 2.

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.

Cody was 165cm tall on the first day of school this year, which was 10% taller than he was on the first day of school last year.

An account with a $250 balance accrues 2% annually. if no deposits or withdrawals are made, which graph can be used to determine approximately how many years will it take for the balance to be $282? it's e2020 ni️️as