H=-16t^2+20 i need to find t= time in seconds and h= hight in feet

Tim's phone service charges $23.06 plus an additional $0.22 for each text message sent per month. if tim's phone bill was $28.56, which equation could be used to find how many text messages, x, tim sent last month?

Select all the expressions that will include a remainder.

Suppose that g(x)=f(x+9) which statement best compares the graph of g(x) with the graph of f(x)