Find the value of this expression if x= -3 and y= 3 xy^2 -7

Which graph has figures that can undergo a similarity transformation to justify that they are similar? (obviously not the third one)

Eric drove 275 miles in 5 hours. at the same rate how long would it take him to drive 495 miles?

Astudent draws two parabolas on graph paper. both parabolas cross the x-axis at (–4, 0) and (6, 0). the y-intercept of the first parabola is (0, –12). the y-intercept of the second parabola is (0, –24). what is the positive difference between the a values for the two functions that describe the parabolas? write your answer as a decimal rounded to the nearest tenth