The equation y 15x represents the number of miles, y, that Kaj can drive
her car for every x gallons of gas. Find the rate of change.

The train station clock runs too fast and gains 5 minutes every 10 days. how many minutes and seconds will it have gained at the end of 9 days?

It says factor each expression 49x-28?

Is the product of two rational numbers irrational or rational? first, make a hypothesis by multiplying two rational numbers. then, use variables such as x=a/b and y=c/d and the closure property of integers to prove your hypothesis.