9. The volume V cm of a gas, at 1 atmospheric pressure, formed in a chemical reaction at time t minutes is given by V = 5t. (a) Using a scale of 1 cm to 1 unit on the t-axis and 1 cm to 5 units on the V-axis, draw the graph of V = 5t from t = 0 to t = 6.

(b) Use your graph to find the time taken to produce 20 cm of the gas.​

Barney & noblet customers can choose to purchase a membership for $25 per year members receive 10% off all store purchases 1. how much would a member pay per year if he bought $50 worth of items each year? 2. write a slope-intercept equation that expresses how much a member pays per year using x to represent his purchases per year 3. how much would a member have to spend per year to pay off his membership fee?