I’m not sure how your class works, but usually if they are circled it means you only have to do the circled ones. GCF always stands for greatest common factor
Answer:
W > 0.5L
Perimeter:
2L + 2W < 180
2L + 2(0.5L) < 180
2L + 1L < 180
3L < 180
÷3 ÷3
L < 60
Length should be less than or equal to 60 inches while width should be greater than or equal to 30 inches.
Answer:
0
Step-by-step explanation:
Thinking process:

=
by Stoke's Theorem
=
since z = 
Answer:
Option in the "bottom left" is correct choice.
Step-by-step explanation:
The volume of a sphere will become 27 times greater if diameter is tripled.
Answer: 
<u>Add 3x to both sides</u>
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<u></u>
<u></u>
<u>Subtract 15 from both sides</u>
<u></u>
<u></u>
<u></u>
<u>Divide both sides by 5</u>
<u></u>
<u></u>