Seven times the difference of y and one

Suppose the radius of a circle is 16. what issuppose the radius of a circle is 16. what is its circumference its circumference

Carlos spent 1 1/4 hours doing his math homework he spent 1/4 of his time practicing his multiplication facts how many hours to carlos been practicing his multiplication facts

Aline passes through (1,-5) and(-3,7) write an equation for the line in point slope form rewrite the equation in slope intercept form