Please help me with this!! And can you have answer in fraction form!?

Write a function for a rotation 90 degrees counter clockwise about the origin, point 0

Daniel expanded the expression as shown below -2(-8x-4y+3/4)=-10x-8y-11/4 what errors did he make? check all that apply

The cost of using a service is $0.25 per min. what equation correctly represents the total cost c, in dollars, for d days of use?