Sammy opened a college savings account. She opened the account with $85, and then deposited $45 each month. Which equation best models the relationship between m, the
number of monthly deposits Sammy made, and S, the total amount in Sammy's college savings
account?
A. s= 85m - 45
B. s=45m - 85
C. s= 85m + 45
D. s= 45m + 85

D.) s = 45m + 85

Step-by-step explanation:

If she deposits 45 dollars a month, then we put 45 × m, and because she has already entered 85 dollars we add 45m + 85.

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step-by-step explanation:

answer: the distance

step-by-step explanation:

to calculate the distance d of a line segment with endpoints (x1, y1) and (x2, y2) use the formula d (x2 x1)2 (y2 y1)2. to calculate the midpoint of a line segment with endpoints (x1, y1) and (x2, y2) use the formula