Need help with this please!! Carissa also has a sink that is shaped like a half-sphere. The sink has a volume of 660 pi in. cubed. One day her sink clogged.

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.

Is there an x intercept in the equation 60*1.15^x

(a) solve the euler's equation x3y +xy -y 0. (b). solve the higher order equation y' +2y" 11y' 12y=0