Brenna charges $15, $30, $45, and $60 for babystting 1,2,3, and 4 hours, respctively. is the relastionship between the amount charge and the number of hours porportional? if so, find the unit rate. if not explain why

What is the solution of sqrt x+2-15=-3

What is the value of x in the this question ?

Marcus and cody both leave the park at the same time, but in opposite directions. if cody travels 6 mph faster than marcus and after 4 hours they are 64 miles apart, how fast is each traveling? solve using rare times time = distance.