Question

Along with the flowers, Maggie bought 4 packages of balloons and 2 packages of plant food. The packages of balloons cost $3.59 each and the total sales tax was$1.34. The total amount she paid was $32.09, including sales tax. Explain a strategy she could use to find the cost of 1 package of plant food.

Answer 1

total amount - sales tax - 2 packages of balloons = 1 package plant food = cost of 1 plant food
32.09 - 1.34 - 7.18 = 23.57
23.57 ÷ 2 =11.78
strategy:
32.09 - 1.34 - 7.18 - cost of 1 package of p.f. = cost of 1 package of p.f.