Answer:

Step-by-step explanation:
When you have ratios and some unknowns,you can create complex fractions from them.Bring them to the same denominator and solve for X.
Answer:
28 and a=lenth times width
Step-by-step
mutiply 7 time 4 and it is 28
Answer:
it will be
=> 4854
Step-by-step explanation:
hope it's helpful for you xd