Answer:
x=3
Step-by-step explanation:
2/3x+15=17
first subtract 15 from both sides
2/3x=2
multiply by 3 to eliminate the fraction
2x=6
divide by 3
x=3
Answer:
B
Step-by-step explanation:
There is two wholes and one half.
Hey there!

If he is going to cut it into 5 equal pieces then we need to divide 105 by 5.
105 ÷ 5 = 21
So, each piece will be 21 feet long.
Hope this helps!
The coefficient is 12a because it has a variable (a).