STAAR Practice 21-40

A mail carrier recorded the number of people in each household on the mail route and the number of pieces of mail each household received in one day. The scatterplot shows the data the mail carrier recorded.

Based on the data, how many pieces of mail should a household with 8 people expect to receive?

• 16

• 29

• 27

• 21

Which table does NOT represent y as a function of x ?

• 
• 
• 
• 

Tags

CCSS.8.F.A.1

Triangle FGH is shown on the coordinate plane.

Triangle FGH is rotated 90° clockwise to create triangle F'G'H'.

Choose the correct answer from each drop-down menu to complete the statements.

Triangle F'G'H' is ​ (a)   to triangle FGH.

The orientation of the vertices of triangle F'G'H' ​ (b)   the same as the orientation of the vertices of triangle FGH.

• congruent
• similar but not congruent
• not similar
• is
• is not

Tags

CCSS.8.G.A.2

CCSS.HSG.CO.B.6

The volume of salt water on Earth's surface is approximately 350,000,000,000,000,000,000 gallons. How is this number written in scientific notation?

Tags

CCSS.8.EE.A.3

Maren made an initial deposit into her savings account. Each month Maren deposits the same amount into the savings account. The graph shows the linear relationship between x, the number of months Maren's savings account has been open, and y, the amount of money in the account.

Which amount best represents Maren's initial deposit in dollars?

• $450

• $900

• $1,350

• $1,575

Tags

CCSS.HSF.LE.B.5

A triangle is shown, with Squares 1, 2, and 3 drawn on its sides.

Which measurements in units for the sides of the squares show that the triangle is a right triangle?

Tags

CCSS.8.G.B.8

Tags

CCSS.8.NS.A.2

A box of rice is shaped like a rectangular prism. The box has a length of 6 inches, a width of 1.5 inches, and a height of 8.5 inches. What is the total surface area of the box in square inches?

• 136.5 in²

• 76.5 in²

• 145.5 in²

• 127.5 in²

Tags

CCSS.7.G.B.6

The model represents an equation.

Based on the model, what is the value of x ?

Tags

CCSS.7.EE.B.4A

Triangle KLM is rotated 270° clockwise about the origin to create triangle K'L'M'. Which rule describes the transformation that is applied to triangle KLM?

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5