Which equations are correct? select each correct answer. −5x3(3x3+2)=−15x9−10x3 −3y5(2y3+3)=−6y8−9y5 −2c6(5c3+6)=−10c9−12c6 −4b4(5b2+6)=−20b8−24b3

Jack has a piece of red ribbon that is two times as long as his piece of blue ribbon. he says that he can use two different equation to find out how long his piece of red ribbon is compared to his piece of blue ribbon is. is he correct? explain his reasoning

Witch represents the inverse of the function f(x)=1/4x-12

Hey hotel charges guests $19.75 a day to rent five video games at this rate which expression can be used to determine the charge for renting nine video games for one day at this hotel? pls