Multiply it out to get 5/7*1/9=5/63. This is an exact value of the product.
m is 48 because since they said perimeter you would have to add 3 twice and then subtract is with 102 which is 96 the divide 96 by 2 and you would get 48.
Answer:
Step-by-step explanation:
top = 120sq m
middle = 17sq cm
bottom = 102 sq feet
90% in a fraction is the same as 90/100 simplified, is 9/10.
Hope this helps