HELPMEEEEEEEEEEEEE

Using the commutative property, you would get (-40) - (-56)= (-40)+56= 16 proving that the commutative property does NOT work for subtraction.

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Edit:

You didn't use the commutative property correctly...

For this test, 50% or less means 4 or less questions correct. So the amount of people who got 4 or less questions correct is 1+7+5+3= 16 students.

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-56 - (-40)= -56+40= -16. The commutative property states that a+b=b+a. The commutative property does NOT work for subtraction because a-b doesn't equal b-a.

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If the path is the circumference of the circle, the leash is the radius of 20 feet and the circumference is 2 * radius * pi. The length of the path is 20 * 2 * pi= 40pi= 125.7.

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Is the path the circumference of the circular yard?

If it takes Sammy 15 hours to paint the house, that means that he paints 1/15 of the house per hour. If both Sammy and Nolan paint for 9 hours, then Sammy painted 9/15= 3/5 of the house. That means that Nolan painted 2/5 of the house in 9 hours. That means it takes Nolan 9 / 2 * 5= 22.5 hours.

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Sine of anything cannot be greater than 1. You might want to check your question.

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There are 454/15= 30.266666666... grams in an ounce.

The rounded answer would be 30.27.

Note, there are 16 ounces in a pound, so I'm not sure if you intentionally made it 15

Edit:

In that case, 454/16= 28 3/8 grams in an ounce.

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There are 454/15= 30.266666666... grams in an ounce.

The rounded answer would be 30.27.

Note, there are 16 ounces in a pound, so I'm not sure if you intentionally made it 15.

Edit:

Since there are 16 ounces in a pound, 454/16= 28 3/8 grams in an ounce.

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1. epitome, which means the perfect example of something

2. pragmatic, which means practical or it could be laconic which means brief or short

Hopefully, this can give you a start.

Looking up the definitions can help...if the questions still stump you, try looking for context clues.

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