Answer: 
Step-by-step explanation:
Given

GCF or HCF of the two is the highest common factor

It is clear GCF is 
Answer: 21 fours, 21 sixes, and 42 singles
Answer Is Letter B Because if you rearrange the numbers and flipper flopper them... you can graph them and find the answer
Set 7x-4 and 31 equal to each other
7X-4=31
Add four to both sides
7X=27
X=3
The answer is D
Answer:
x = 3√10
Step-by-step explanation:
We can find the value of x by using Euclidean theorem
x^2 = 9 × 10
x^2 = 90
x = 3√10