Understanding and applying sequences

Luna takes 5 quizzes each week. After attending 9 weeks of school already, how many quizzes will Luna have taken in total?

• 14 Quizzes

• 6 Quizzes

• 26 Quizzes

• 45 Quizzes

Write a sequence to represent the number of smiley faces in each group. Select all that apply.

•  $a_n=4+\left(n-1\right)2$

• $f\left(n\right)=2+4\left(n-1\right)$

• $f\left(n\right)=4+2\left(n-1\right)$

• $a_n=a_{n-1}+2$

• $a_n=a_{n-1}-2$

If a plant grows 1/4 cm every day for 21 days, what is the total amount of growth?

• 82 cm
• 25 cm
• 17 1/4 cm
• 5 1/4 cm

An author wrote 3 pages during the first week of writing, 6 pages the second week, 9 pages the third week, and 12 pages the fourth week. If this pattern continues, how many pages will she write during her twelfth week of writing?

• 36 pages
• 40 pages
• 48 pages
• 52 pages

• 56

• 64

• 220

• 768

A bobsled team is practicing runs on a track. Their first run takes 4.85 minutes. On each of the next two runs, the team’s time changes by -0.27 minute compared to the previous time. What was the team’s time on their final run?

As early as Grade 3, Khent was taught by his parents to save money. He has a piggy bank. He starts to deposit money every month in the following pattern for a period of two years: 10, 15, 20, 25, and so on. How much will be the total amount of the money he has after two years (24 months)?

• 125

• 1,620

• 3,240

• 135

Toby brings his math teacher 3 brownies every week. How many brownies will Toby's math teacher receive in 5 weeks?

• 15

• 8

• 10

• 20

Tucker had $29 on Friday. He had $26 on Thursday. On Wednesday he had $23. If the pattern continues how much will he have on Tuesday?

• $14

• $28

• $24

• $20

This is an arithmetic sequence. How many dots would be in the next figure?

• 4

• 13

• 14

• 15