Farley bought $5 worth of school supplies plus pencils at $0.40 per pencil. what is the rate of change in this sentence?

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.

Can somebody 1. what is the formula for finding the vertical distance between two points on a coordinate plane?

Asequence is a function whose is the set of natural numbers