We can see that the difference is 8 so we can write:
Side = 36/4 = 9 mm
area = 9*9 = 81 mm²
Since both fractions have the same denominator, to find the greater one all you have to do is see which one has a bigger numerator
42>36
the answer is 42/126 is greater
(3.5x1016) = 3556
and
(2.2x1010) = 2222
As per question;
(3556)x(2222) = 10 a*b
By dividing both sides by "10"
we get
(3556)x(222.2) = a*b
or
(355.6)x(2222) = a*b
by comparing both sides of the equation,
we get that a = 3556 and b = 222.2
or
a = 355.6 and b = 2222
8.525 is rounded to 8.53 because the 5 rounds up so the 2 turns into a 3
