Q: Selene buys two instant cameras at $110 and three digital photo frames at $120 each. She gets a 5% discount on all the items she purchased. How much does she pay in all?
A: Two instant camera cost 2 x $110 = $220. Three digital photo frames cost 3 x $120 = $360. Thus, the total amount is $220 + $360 = $580. So, Selena gets a discount of 5 / 100 x 580 = $29. Therefore, Selena pays a total of $580 - $29 = $551. The answer is 551.

Q: During a race transmitted on television, five advertisements were shown, lasting 3 minutes each. One minute of advertising costs $4000. What was the cost of transmitting these advertisements during the race?
A: During the race, there were five ads, lasting 3 minutes each, so in total, they lasted 5 * 3 = 15 minutes. So the total cost of these ads was 15 * 4000 = $60000. The answer is 60000.

Q: Lisa has 36 candies. On Mondays and Wednesdays, she eats 2 candies for each day and on the other days of the week she eats 1 candy for each day. How many weeks does it take for Lisa to eat all of the candies?
A:
On Monday and Tuesday, she eats 2 * 2 = 4 candies. On the other days of the week, she eats 5 * 1 = 5 candies. In a week she eats 5 + 4 = 9 candies. So it takes 36 / 9 = 4 weeks for Lisa to eat all candies. The answer is 4.