Matt has started a car washing business to save money for college. each week he washes three more cars than the week he did before.

This problem can be expressed as a liner model, because it specifies that each week he washes three more cars than the week before, this means that the new week is always three more than the previous week, this implies a sum operation to indicate it.

So, the expression would be:

Where represents the new week, and represents the previous week.

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

5/12, or 5: 12

step-by-step explanation: