21- You swam at a rate of 3/8 mile per hour in March. You swam at a rate of 3/7 mile per hour in April. How much faster did you swim in April?

Find the equation of the line that goes through the points (4, –1) and (2, –5). use slope formula,equation,to find the slope of a line that passes through the points. m = use slope-intercept form, y = mx + b, to find the y-intercept (b) of the line. b = write the equation in slope-intercept form, y = mx + b.

Which is a graph of a proportional relationship?

What is the value of x when x + 7 = 21?