Explain how rates and unit rates are alike and how they are different? anything will work it just needs to be at least a couple sentences long i only have 10 min before next class! plz 20pts

Unit Rates are the same in that you divide the cost by the amount to find out the cost for 1 unit of the item.  Unit rates are different in the fact they will frequently get vastly different answers because your starting with different things.  For example $1.50 for 30 items is $0.05 a unit,where 100 elephants in 4 enclosure is 25 elephants per enclosure.  One is a while number and when is a decimal.  

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)

answer: if you weigh 60 pounds on earth, on the moon you will weigh about 10 pounds. if you weigh 120 pounds on earth, you will weigh about 20 pounds on the moon. since weight is caused by the mass of two objects that are near each other, the bigger the objects, the more the force of gravity.

step-by-step explanation: if you weigh 60 pounds on earth, on the moon you will weigh about 10 pounds. if you weigh 120 pounds on earth, you will weigh about 20 pounds on the moon. since weight is caused by the mass of two objects that are near each other, the bigger the objects, the more the force of gravity.