Answer:
6
Step-by-step explanation:
Mode means the number that appears the most often.
Answer:
No solution unless you want to solve for an imaginary number which in that case 
Step-by-step explanation:



Here you can stop and say "no solution" since you cannot square root a negative number, but if you want you can still solve for an imaginary number:



Answer:
2401
Step-by-step explanation:
7*7*7*7=2401
1/5 and 3/5
Hope this helps!
Steps to solve:
k + 10 = 27
~Subtract 10 to both sides
k = 17
Best of Luck!