Brandon owes his brother $100. He will repay his brother $5 each week. Which expression gives the amount in dollars Brandon will still owe his brother after n weeks? A - 5−100n
B - 100−5n
C - 5n−100
D - 100n−5

Which situation can be modeled by the inequality 5 + 10w ≥ 45? a. you start with $5 and save $10 a week until you have at least $45. b. you start with 5 baseball cards and purchase 10 cards every week until you have at most 45 cards. c. you start with 5 water bottles and purchases cases of 10 water bottles each until you have a total of 45 water bottles. d. you spend $5 plus $10 per week until you have less than $45.

Credit card a offers an introductory apr of 3.4% for the first three months and standard apr of 15.7% thereafter,

Suppose that the price p, in dollars, and the number of sales, x, of a certain item follow the equation 4 p plus 4 x plus 2 pxequals56. suppose also that p and x are both functions of time, measured in days. find the rate at which x is changing when xequals2, pequals6, and startfraction dp over dt endfraction equals1.5.