Answer: b. 125
Step-by-step explanation:
Find the square roots of each, and if the square root is a decimal, it is not a perfect square.
Square root of 81: 9
Square root of 49: 7
Square root of 100: 10
That leaves 125.
that would definitely be 800,000 because 751,447 is much more closer to 800,000 than 700,000
The question demands that we find a fraction of a given quantity.
The 'of ' means multiplication.
So the total distance of the journey was

But they walked ¼ of the whole journey. We are supposed to find




Hence they walked 3.25 miles.
Answer:

Step-by-step explanation:
Given


Required
Ratio B(x) to A(x)
This is calculated as:

Express as fraction

Substitute:
and 

Apply law of indices


(2x^2 +6x) + (5x +15)
GCF for the 1st group is 2x and the 2nd is 5
2x(x +3) + 5(x +3)
(2x +5) (x+3)