Since Sarah’s age is 2x of Bob’s age (which is 42) Sarah is 84.
This really is left up to you as long as you have an odd number in the tens place and a 7 in the ones place. How big (or small) the number is is up to you. As long as it is at least 17, it's pretty much up to you.
Answer:

Step-by-step explanation:
Complete question

Required
Solve for x
We have:

Collect like terms

Multiply through by 

Make x the subject

Answer:
Your answer is exactly 120 feet
im sorry but can you show more so i can help you Step-by-step explanation: