Proportional Reasoning

This graph shows the linear relationship between commission earned by a salesperson and number of sales he makes. Using the value for R, Select ALL equations that represents the relationship between the commission earned (c) and the number of sales (s

• C=8S

• S=8C

Kelli is buying a book at an online store. She can choose to use one of the three deals that are shown in the image.The online store charges a flat rate of $3.99 for shipping. Kelli is buying a book for $22.43. She could buy the same book with a hardcover for $1.50 more. Which option is the least expensive for Kelli?

• Buy the book without using any of the deals.

• Upgrade the book to hardcover, and use Deal #1.

• Order another small item for $3, and use Deal #2.

• Order another small item for $3, and use Deal #3.

Look at the table of costs for different size bottles of salad dressing. Which size has the least cost per ounce?

• 28 oz

• 16 oz

• 30 oz

• 12 oz

The table shows the number of girls and the number of boys in 4 sixth grade homerooms at Edison Middle School. Which homeroom has a ratio of girls to boys that is equivalent to 5:8?

• Homeroom 1

• Homeroom 2

• Homeroom 3

• Homeroom 4

Compare the number of black circles to white circles. If the ratio remains the same, how many black circles will there be if there are 60 white circles?

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The table below shows the numbers of pencils and pens three friends have in their backpacks. Who has a ratio of pencils to pens that is equivalent to 4:3?

• Lydia

• Angel

• Elizabeth

• Nobody

Fred went to an arcade to play video games. He paid $2 for every 11 tokens he bought. He spent a total of $16 on tokens. Which equation can be used to determine t, the number of tokens Fred bought?

The ratio of boys to girls in the school band is 4:3. If there are 16 boys, how many girls are in the band?

In 7.5 hours, Jenny can read 3 books. At this rate, how many hours does it take for Jenny to read one book?

• .04 hours

• .4 hours

• 2.5 hours

• 22.5 hours

A particular frozen yogurt has 75 calories in 2 ounces. How many calories are in 8 ounces of yogurt?