PLEASE SOMEONE HELPPP Write the transformation form of the equation for the cosine function that has been compressed vertically by a factor of 1/2, stretched horizontally by a factor of 4, and shifted down 1 unit

If the graphs of the linear equations in a system are parallel, what does that mean about the possible solution(s) of the system? a. there are infinitely many solutions. b. there is no solution. c. there is exactly one solution. d. the lines in a system cannot be parallel.

At $1.32 million, they closed last month percent above what they paid in 2007." how much did they pay in 2007?

Awindow washer cleans 42 windows in 2 hours. at this rate, how many windows did he clean in 180 minutes.