For this case we must multiply the following expression:

Applying distributive property we have:

By definition of multiplication of powers of the same base, we have to put the same base and add the exponents:

Adding similar terms:

Answer:

A semi-circle can be rotated about the y-axis to create a sphere
I’m pretty sure the answer is D.
Answer:
To find how much money they shared first find the total parts
Which is
5 + 7 + 8 = 20
Deila's share is
5 /20 × £1600
= 1/4 × £1600 = £ 400
Edwin's share is
7/ 20 ×£1600 = £560
Freya's share is
8/20 × £1600
= 2/5 × £1600 = £640
Hope this helps you