Q: Diane bought twenty more apples than Cecile. If Cecile bought 15 apples, how many apples did they buy altogether?
A: Diane bought 15 + 20 = 35 apples. Therefore, they bought 15 + 35 = 50 apples altogether. The answer is 50.

Q: Kirt has a $6000 monthly salary when he started his job. After a year of working, his salary increased by 30%. How much are his total earnings after 3 years?
A: His annual salary for the first year of working is 6000 x 12 = $72000. Kirt's monthly increase is $6000 x 30 / 100 = $1800. So, he received $6000 + $1800 = $7800 monthly on the second and third year of working. Kirt's annual salary in the second and third year was $7800 x 12 = $93600. . Thus, his total earning after 3 years is $72000 + $93600 + $93600 = $259200. The answer is 259200.

Q: A baker bought cooking ingredients in the supermarket. She bought 3 boxes of flour that cost $3 each box, 3 trays of eggs that cost $10 for each tray, 7 liters of milk that cost $5 each liter, and 2 boxes of baking soda that cost $3 each box. How much will she have to pay for everything?
A:
The total cost for the flour is 3 x $3 = $9. The total cost of the tray of eggs is 3 x $10 = $30. The total cost for the liter of milk is 7 x $5 = $35. The total cost for the box of baking soda is 2 x $3 = $6. Therefore, the total cost for all the ingredients is $9 + $30 + $35 + $6 = $80. The answer is 80.