While shopping for school supplies, ashton buys two 3-rings binders, three packages of pencils, and two erasers. if he pays using a $20 bill, how much change will he receive?

answer: the answer is one of

step-by-step explanation:   we are given to write a proper fraction where the whole is divided into an even number of equal parts less than ten, and an odd number of those parts exist.

an even number less than 10 may be one of 2, 4, 6 or 8. so, the whole may be one of these four evens.

now, an odd number of these parts must exist, so the numerator must be an odd number, one of 1, 3, 5 or 7. it cannot be 9 because then the fraction will become improper.

thus, our fraction may be one of the following

answer: they are supplementary angles

step-by-step explanation: 161+19=180. supplementary angles equal 180 degrees