TEKS.MATH.7.3B

A 78 gram sample of Uranium loses half of its mass each year.  How much is left after 6 years?

• 13 grams
• 6.5 grams
• 1.22 grams
• 592.31 grams

Tags

TEKS.MATH.7.3B

TEKS.MATH.7.3A

4(-p - 6)

• 4p - 24
• 4p + 24
• -4p + 24
• -4p - 24

Tags

TEKS.MATH.7.3B

TEKS.MATH.7.3A

 10u³v⁵ ⋅ 7v³

• 70u³v¹⁵
• 17u³v⁸
• 70u³v⁸
• none of the above

Tags

TEKS.MATH.7.3B

Simplify the expression: 7+3(1 - 2x) 

• 21 - 6x
• 10 - 2x
• 10 - 20x
• 10 - 6x

Tags

TEKS.MATH.7.3B

Evaluate the expression.
|-37.8| + 8

• 38.6
• 45.8
• 37
• 117.8

Tags

TEKS.MATH.7.3B

TEKS.MATH.7.3A

-3(2c - 5)

• -6c - 15
• -6c + 15
• 6c + 15
• 6c - 15

Tags

TEKS.MATH.7.3B

TEKS.MATH.7.3A

In the Sahara Desert one day it was 136°F. In the Gobi Desert a temperature of -50°F was recorded. What is the difference between these two temperatures?

• -186°F
• 86°F
• 186°F
• -86°F

Tags

TEKS.MATH.7.3B

TEKS.MATH.7.3A

(3x + 4y - 3z) - (2x - 6y + 7z)

• x + 10y - 10z
• -x +10y - 10z
• x -10y - 10z
• -x -10y - 10z

Tags

TEKS.MATH.7.3B

TEKS.MATH.7.3A

3x + 10(1 – 7x)

• 13x – 7
• –67x + 10
• –4x + 10
• –73x + 10

Tags

TEKS.MATH.7.3B

4 x 3

• 7
• 9
• 12
• 16

Tags

TEKS.MATH.7.3B

TEKS.MATH.7.3A