The Martinez family is having their swimming pool filled with water by a professional company. A tanker truck can fill the pool at a constant rate of 150 gallons per minute. Assume the pool contained no water at the beginning of the filling process. a. Write a linear equation in two variables that represents the number of gallons of water in the Martinez’s pool, y , at any time, x , in minutes.

How can you tell when x and y are not directly proportional?

Tim open up a new saving account with a $50 deposit and plant to deposit $20 per week into the same account.write an expression to represent the total amount in his savings account.

Kevin has a spinner that has 10 equal sections and 2 sections of each color—red, blue, green, yellow, and purple. kevin spins the spinner 180 times. kevin determines about how many times the spinner will land on red or green, and his work is shown below. -kevin has the formula reversed; it should be the total number of sections over the number of red or green sections. -kevin should have used a 4 in the numerator because there are 2 red sections and 2 green sections. -kevin should multiply by the number of sections in the spinner rather than the total number of spins. -kevin calculated the prediction correctly and did not make any mistakes.