What is this pls answer

You paid 28.00 for 8 gallons of gasoline. how much would you pay for 15 gallons of gasoline?

The description below represents function a and the table represents function b: function a the function is 5 more than 3 times x. function b x y −1 2 0 5 1 8 which statement is correct about the slope and y-intercept of the two functions? (1 point) their slopes are equal but y-intercepts are not equal. their slopes are not equal but y-intercepts are equal. both slopes and y intercepts are equal. neither slopes nor y-intercepts are equal.

16x^2-16x=5 solve the equation by completing the square