Answer:
There are 300 centimeters tall together
Just devide and you will get one whole number and the rest you use as the new fraction.
The answer is 1 2/5 ft²
The area (A) of the rectangle is:
A = w * l
w - width
l - length
We have:
w = 7/8 ft
l = 1 3/5 ft = 1 + 3/5 = 5/5 + 3/5 = (5 + 3)/5 = 8/5 ft
A = w * l
A = 7/8 * 8/5
A = 7/5 = (5+2)/5 = 5/5 + 2/5 = 1 + 2/5 = 1 2/5 ft²
Here, Mass of one specimen = 0.00063 = 6.3 * 10⁻⁴
Now, Mass of 6 specimens = 6.3 * 10⁻⁴ * 6
= 37.8 * 10⁻⁴ = 3.78 * 10⁻³
In short, Your Answer would be: 3.78 * 10⁻³ Kg
Hope this helps!