CAN SOMEONE HELP EM WITH THSES TWO QUESTIONS AND EXPLAIN HOW YOU GOT IT IF YOU DO THAT I WILL GIVE YOU THE CROWN AND FIVE STARS

Answer:
1)
A. x = 85/7
I used the formula length = area divided by width to get a.
2)
B. w = 85.6/12
I used the formula width = area divided by length to get b.