The two rectangles above are similar. If a = 20 m, b = 30 m, and c = 30 m, what is the length of d?

These tables represent a quadratic function with a vertex at (0, -1). what is the average rate of change for the interval from x = 9 to x = 10?

Which shows the first equation written in slope-intercept form? 1/2 (2y + 10) = 7x

Sally deposited money into a savings account paying 4% simple interest per year.the first year,she earned $75 in interest.how much interest will she earn during the following year?