Jessica's business has 83 rolls of toilet paper. Customers use 3 rolls of toilet paper per day. Write an expression to represent the amount of toilet paper after d days. i dont understand can someone post an answer an explain?

What are the possible rational zeros of [tex]f(x) = x^4+2x^3-3x^2-4x+18[/tex]

Acompany manufactures three types of cabinets. it makes 110 cabinets each week. in the first week, the sum of the number of type-1 cabinets and twice the number of type-2 cabinets produced was 10 more than the number of type-3 cabinets produced. the next week, the number of type-1 cabinets produced was three times more than in the first week, no type-2 cabinets were produced, and the number of type-3 cabinets produced was the same as in the previous week.

You buy a veido game for $60 and the sales tax is 8% what is the total cost for the game including the sales tax