[Question]: Jasmine bought 4 pounds of coffee beans and 2 gallons of milk. A pound of coffee beans costs $2.50 and a gallon of milk costs $3.50. How much will Jasmine pay in all?
[Answer]: Four pounds of coffee cost $2.50 x 4 = $10. Two gallons of milk cost $3.50 x 2 = $7. So, Jasmine will pay $10 + $7 = $17.
So the answer is 17.

[Question]: The number of trees is three times more than the number of stones in the courtyard. There are also twice as many birds in the trees as the combined number of trees and stones in the yard. If the number of stones is 40, how many birds are in the trees?
[Answer]: The number of trees is three times more than the number of rocks, meaning there are 3 * 40 = 120 more trees than rocks in the courtyard. The total number of trees in the yard is 120 + 40 = 160. Combined, there are 160 + 40 = 200 trees and stones in the courtyard. Since the number of birds is twice the combined number of trees and stones in the courtyard, there are 2 * 200 = 400 birds on the trees.
So the answer is 400.

[Question]: Jackie's favorite cosmetic company was offering free shipping when you spent $50.00. Jackie ordered her favorite shampoo and conditioner that each cost $10.00 a bottle and 3 bottles of lotion that cost $6.00 each. How much more money does Jackie need to spend to be eligible for free shipping?
[Answer]:
The shampoo and conditioner cost $10 each so 2 * $10 = $20.00. 3 bottles of lotion cost $6.00 each so 3 * $6 = $18.00. So far she has spent $20 + $18 = $38.00. You need to spend $50.00 for free shipping and she has spent $38.00 already so she needs to buy $50 - $38 = $12.00 more in products.
So the answer is 12.