Bethany sells roses and petunias. The expression 3r+2.5p3r+2.5p3, r, plus, 2, point, 5, p gives the cost (in dollars) of rrr roses and ppp petunias.
What is the cost of 777 roses and 888 petunias?
3r + 2.5p In this case to find the result, what you must do is substitute in the given formula the number of roses and the number of petunias given. Substituting we have: 3 * (7) + 2.5 * (8) = 41 answer the cost of 7 roses and 8 petunias is $ 41
