What is the slope-intercept for equation for the line that passes through (1,3) and (3,7)?

Two cyclists 84 miles apart start riding toward each other at the same. one cycles 2 times as fast as the other. if they meet 4 hours later, what is the speed (in mi/h) of the faster cyclist?

Write an algebraic expression to match each statement a. four less than 8 times a number b. twice the difference of a number and six c. nine from a number squared

Present age of man is 45 years, 5 years back his age was 4 times age of his son what is present age of his son?