Answer:
50 because,
Step-by-step explanation:
9n means 9 times 6. Which equals to 54, subtract 4 to get 50
The answer is D i do not get the other ones
Answer:
x=5
Step-by-step explanation:
add three to both sides. you get 7x=35. 35/7=5
Answer:
x=-0.7
Step-by-step explanation:
7x+1.1=-3.8
subtract 1.1 on both sides
7x=-4.9
divide both sides by 7
x=-0.7
F + V = E + 2
F = 25
V = 17
25 + 17 = E + 2
42 = E + 2
42 - 2 = E
40 = E <== there are 40 edges