i need someone to teach me more about inequalities no rush but i just need it in someone else perspective not the teachers

inequalities: When two numbers are not equal with each other

for example: 4 ISNT equal to 2

Hope this helps!

256π units²   (answer b)

step-by-step explanation:

the formula for the surface area of a sphere of radius r

is             a = 4πr²

and so, if r = 8 units, then the surface area is:

a = 4π(8 units)² = 256π units²   (answer b)

a=24; b=12

step-by-step explanation:

a/b=2: 1

a=2b

36/(1+2)=12

b=12

a=24