Answer:
a
Step-by-step explanation:
square formula for area is 
Answer:
18x-3
Step-by-step explanation:
f(x)= 3x + 10x
g(x)=5x - 3
f(x)+g(x) = 3x + 10x + 5x - 3
Combine like terms
= 18x -3
No, -(5/11) is equivalent to -5 all over 11 so -5/11. You cannot change the denominator