8th BOY Review

• 2 cups

• 6 cups

Rebekah bought g gallons of paint for $12.85 per gallon and b brushes for $4.79 each. Which expression can be used to determine the total amount Rebekah spent on paint and brushes?

• 4.79b + 12.85g

• 4.79g + 12.85b

• 12.85b + 4.79g

• 12.85g - 4.79b

At a wedding reception, an equal number of guests were seated at 12 round tables. The 13 people in the wedding party were seated at a rectangular table. There were 121 people at the reception altogether. Which equation could you use to find the number of guests, n, seats at each round table?

• 12 + 13n = 121

• 12n + 13 =121

• 121= 12n - 13

• 121= 13n -12

Kayla rolls two number cubes numbered 1 to 6. What is the probability that the sum of the numbers rolled will be 5?

A 12-section game wheel has a 25% probability that the pointer will land on green. What is the likelihood that the pointer will land on green?

• It is certain the pointer will land on green.

• It is neither likely nor unlikely the pointer will land on green.

• It is likely the pointer will land on green.

• It is unlikely the pointer will land on green.

A national survey of middle-school students asks which subject is most challenging. Which of the samples is a representative sample?

• 372 sixth-graders in a certain town

• 972 seventh-graders in a certain county

• 619 eighth-graders in different states

• 400 students from various states, representing grades 6-8

Maria needs to buy cat food. At Save Rite, cat food costs $5.25 for 3 cans. Spend Less offers cat food at $7.50 for 5 cans. Maria buys 15 cans from the store with the lowest price. How much did she pay?

• $8.57

• $10.00

• $22.50

• $26.25

Find the sum:

(-7b + 8c) - (12a + 14) + (5a + 5b)

• -7a + 12b + 8c + 14

• -7a - 2b + 8c -14

• -17a - 2b + 8c + 14

• 17a - 2b + 8c - 14