John was swimming for hour and a half hours at a speed of 2 miles per hour. how far did he swim?

The variable z is directly proportional to x, and inversely proportional to y. when x is 4 and y is 13, z has the value 1.2307692307692. what is the value of z when x= 9, and y= 20

Aline has a slope of 1/4 and passes through point (0.4,-1/2). what is the value of the y-intercept?

Which are factor pairs of 350? choose all answers that are correct. a) 30 and 12 b) 35 and 10 c) 70 and 5 d) 2 and 125