On a two week job, a repairman works a total of 70 hours . he changes $75 plus $40 per hour, an equation shows this relationship where x is the number of hours and y is the total fee.
a. what number is the slope of te line shown by equation?
b. what number is the y-intercept ?

The graph below shows the price of different numbers of mats at a store: a graph is shown. the values on the x axis are 0, 2, 4, 6, 8, 10. the values on the y axis are 0, 21, 42, 63, 84, and 105. points are shown on ordered pairs 0, 0 and 2, 21 and 4, 42 and 6, 63 and 8, 84. these points are connected by a line. the label on the x axis is number of mats. the title on the y axis is price in dollars. which equation can be used to determine p, the cost of b mats?

Select the conic section that represents the equation. 3x2 + 3y2 -2x + 4 = 0

At noon a tank contained 10cm water. after several hours it contained 7cm of water. what is the percent decrease of water in the tank?