Answer:
2x+5
Step-by-step explanation:
Formula for the perimeter of a reactangle= 2(l+b)
So,
2(l+b) = 10x+18
2(3x+4 + b) = 10x+18
Rearrange and solve
3x+4+b = 5x+9
b = 5x+9 - 3x - 4
b = 2x+5
Thus the measurement of the width = 2x+5
Hope this helps
Answer:

Step-by-step explanation:
→ Substitute in the numbers

→ Simplify

Answer:
4.05
Step-by-step explanation:

multiply the following
add the sum (3.5+0.55)
you'll get 4.05
Answer:
the first option is correct
since value of a will be found through division.