A copy machine makes copies at a constant rate of 80 copies in 2.5 minutes. How many minutes would it take the machine to make 120 copies?

Which equation represents a proportional relationship that has a constant of proportionality equal to 1/5

Which questions would most a reader identify the author's purpose for writing? check all that apply. what type of text is this? what type of reviews did the book receive? how many copies of the book have been sold? what is the central idea? how does this text make one feel?

What is 100,000 times 1/100,000, using the standard method of multiplication? write the answer as 10 to a power.