Marcus and Kendra are having a sticker party for 21 people. At the party, Marcus and Kendra will give each person 6 stickers. Stickers are sold in packages of 5. How many packages will Marcus and Kendra need to buy?

The Amazing Adventures of Astro is coming to the theatre this weekend. Each ticket costs $4.50. Tickets purchased in pairs cost $7.50. What is least amount of money it will cost to buy 9 tickets cost?

Zachary is thinking of a mystery number. If he divides his number by 4 and then multiplies it by 5, the result is 135. What is Zachary’s mystery number?

Together, Peter and Sam have $65. Peter has 4 times as much money as Sam. How much money does Peter have?

Tara’s average on three science tests is 92. She scored 87 on the first test and 100 on the second test. What did she score on the third test?