May you be so kind as to answer these four questions?
(asking this a second time because the first time, i only gave 5 points. that didn't seem fair, so here are 25 points. thank you, hope this isn't too much trouble.)

Steve wants to develop a way to find the total cost of any item including sales tax. the sales tax in his city is 6%. his friend jenna writes the expression x + 6x where x is the cost of the item. explain whether her expression is correct based on the situation.

Apatient is to be given 35 milligrams of demerol every 4 hours. you have demerol 50 milligrams/milliliter in stock. how many milliliters should be given per dose?

5. (03.02)if g(x) = x2 + 3, find g(4). (2 points)1619811