Chapter 15 test

What is the area of this parallelogram?

• 17 units

• 32 units squared

• 32 units

• 40 units squared

Answer explanation

The only measurements that matter are the horizontal and vertical measurements that make a right angle! The side measurement does not get used.

What is the area of the parallelogram?

• 165 yards squared

• 120 yards

• 120 yds squared

Logan bought a book. The tax rate was 7%. How do you write 7% as a decimal in order to multiply?

• 0.7

• 7.0

• 0.07

Answer explanation

PER cent - out of a hundred - HUNDREDTHS. The percent should go to the hundredths place!!! Two places behind the decimal!

When you are finding sales tax, you first multiply the tax (in decimal form) times the cost of the item...then what?

• Then multiply again.

• Then add that amount to the original cost.

• Then subtract that amount from the original cost.

• Then do nothing - you're done.

Answer explanation

PLEASE DON"T MISS THIS!!!

After you multiply the percent (as a decimal) by the original cost...you MUST ADD the new amount to the original amount!!!!!! You are adding the tax to the cost of the item. Do not just leave it at the tiny tax cost!

Logan bought a book for $5.95. THe tax rate was 8%. How much was the total cost for the book? (Your answer should only be to the hundredths place...you will need to ROUND!)

DO. NOT. JUST. GUESS.

THis problem takes some work. Take your time!

• $6.43

• $6.00

• $6.426

• $6.40

If Brynna's book costs $6.78 WITH tax and she pays with a $20, how much will she get back from the cashier?

• $14.78

• $26.78

• $13.22

• $13.23

Answer explanation

Subtract!

You can change them to decimals,

You can multiply up,

You could draw a diagram.

• 4/5

• 1/6

What are the coordinates for A?

• (3,4)

• (3, -4)

• (-3, -4)

• (4,4)

What are the coordinates for C?

• (-2, -4)

• (2, -4)

• (-2, 4)

• (2, -4)

What is the name of a five sided polygon?

• hexagon

• pentagon

• square

• parallelogram