Joe’s cell phone costs him $21 per month plus $3 for every 1gb of data downloaded. what is the limit to the number of gbs he can download to stay within his monthly budget of $30.

The variable in a relation who’s value depends on the value of the independent variable is called what?

Julie buys 2kg of apples and 7kg of pears ? 12.70. the pears cost ? 1.30 per kilogram what is the price per kilogram of the apples? show your working out

In order for the function to be linear, what must m be and why? m = 22 because the rate of change is 1. m = 20 because the rate of change is 3. m = 22 because the rate of change is -1. m = 20 because the rate of change is -3.