20 ! each month, matthew gets a $25 allowance and earns $100 mowing lawns. he uses the expression 25x + 100y to keep track of his earnings.
part a: identify the variables and coefficients in the expression. (3 points)
part b: how many terms are in the expression, what are they, and how do you know? (4 points)
part c: which term in the expression shows the total earned from mowing lawns? (3 points)

Part A
The variables would be x and y where as the coefficients would be 25 and 100

Part B
There are two terms in the expression, those being 25x and 100y. This is because s plus or minus sign separates terms, and in this case, we only have one plus sign.

Part C
The term that represents the total earnings from mowing lawns in 100y, because the prompt says that he earns $100 mowing lawns.

the law of definite proportions states samples of a compound will always contain the same proportion of elements by mass. in other words, a given compound will always contain the same elements in the same proportions by mass.the law of multiple proportions states when two elements combine with each other to form more than one compound, then the weights of one element that combine with a fixed weight of the other are in a ratio of small whole numbers.