[Question]: Max can mow the lawn in 40 minutes. If it takes him twice that long to fertilize the lawn, how long will it take him to both mow and fertilize the lawn?
[Answer]: It takes Max 2 * 40 minutes = 80 minutes to fertilize the lawn. In total, Max takes 80 minutes + 40 minutes = 120 minutes to both mow and fertilize the lawn.
So the answer is 120.

[Question]: A class has 32 students and they all need to present their projects. Every period is 40 minutes long. How many periods will it take for every student to present their project if they have 5 minutes to do so?
[Answer]: All the students will present their projects in 32 * 5 = 160 minutes. It will take 160 / 40 = 4 periods for all the students to present their projects.
So the answer is 4.

[Question]: Romeo buys five bars of chocolate at $5 each and sells these chocolates for a total of $90. If he uses packaging material that costs him $2 for each bar of chocolate, how much profit does he make for all the chocolates he sells?
[Answer]:
The selling price for each bar of chocolate is 90 / 5 = $18. The profit for each bar of chocolate is 18 - 5 - 2 = $11. The total profit is 11 * 5 = $55.
So the answer is 55.