Answer:
The expression means that X+20
Answer:
this shape is a pentagon. this is a regular shape because all the sides are even and all the angles on the inside are also even.
Step-by-step explanation:
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Answer:
A. 5, 7, 11; B: 17, 19, 23
Step-by-step explanation:
These are all the numbers that don't have common factors besides one and itself
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Answer:
1. if x + 5 = 12, then x = 7
<u>:Subtraction property of equality</u>
2. If x + y = 20, and y = 5, then x + 5 = 20.
<u>:Substitution property of equality</u>
3. If 2x3 = 11, then 11 = 2x - 3.
<u>:Symmetric property of equality</u>
