F + V = E + 2
F = 25
V = 17
25 + 17 = E + 2
42 = E + 2
42 - 2 = E
40 = E <== there are 40 edges
2, -3, -10 at the answers
Answer:
<u>25/7, 1.87, </u><u>3.25</u><u>,</u><u> </u><u>and</u><u> </u><u>2</u><u>2</u><u>/</u><u>7</u>
Step-by-step explanation:
16 < 15x - 12
__________
+12. +12
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28 < 15x
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÷15 ÷15
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28/15 < x
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<u>x > 28/15</u>
__________
this is true for any number greater than 1 and 13/15 = 1.8666......
7.
7 squared gives 49, and it is a prime number.
