Answer:
Surface area of sphere = 4πr²
r = radius
radius = diameter /2
= 12/2
= 6units
Surface area = 4π×6²
= 144π
= 452.4 square units
Hope this helps.
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:
20y^7. this is because the exponents are added together because the variable attached to the coefficient are the same therefor the coefficients are multiplied, and the exponents are added together.
You need to 8 + 4 = 12 and take the half of 12 and start at -4 and count up 6