Answer:
5490
Step-by-step explanation:
you multiply every number by 6 and you will get the answer
<em>The correct expressions are as follows:</em>
Equivalent 
Not Equivalent 
Equivalent 
Not Equivalent 

<h3>Further explanation</h3>
Let's recall following formula about Exponents and Surds:





<em>Let us tackle the problem!</em>









<em>From the results above, it can be concluded that the correct statements are:</em>
Equivalent 
Not Equivalent 
Equivalent 
Not Equivalent 

<h3>Learn more</h3>
<h3>Answer details</h3>
Grade: High School
Subject: Mathematics
Chapter: Exponents and Surds
Keywords: Power , Multiplication , Division , Exponent , Surd , Negative , Postive , Value , Equivalent , Perfect , Square , Factor.
Answer:
A
Step-by-step explanation:
Answer: only (x-y=4) and (x+y=4).
Step-by-step explanation:
Notice target point has y=0, so all terms with y are zero. Then all 6 equations reduce to m x = k, for various m and k. So calculate 4×m and compare to k six times.
x - y = 4 4=4 yes
-x - y = 4 -4=4 no
2x - y = 7 8=7 no
x + y = 4 4=4 yes
2x + y = 7 8=7 no
2x + y = -7 8=-7 no.
Answer:
2 hours
Step-by-step explanation:
4 square yards to feet: 4*3 = 12ft
3 cows grazing grass at 2 ft per hour: 2*2 = 6 square ft per hour
Time taken: 12ft/6ft per hour = 2 hours