Find the equation of the line through the point (7,-6) with the slope -15/13

Given f(x) = 2x^2- 5x+1, determine the function value f(2). do not f(x) = in your answer

Does anyone know how to solve and graph this: 4 + | a + 2 | < 7the only part i don't get is the "4 +"

Starting at home, emily traveled uphill to the hardware store for 606060 minutes at just 666 mph. she then traveled back home along the same path downhill at a speed of 121212 mph. what is her average speed for the entire trip from home to the hardware store and back?