Why are all of the possibilities of combinations of amounts of strawberries
and bananas ONLY in the (4,4) quadrant?

Strawberries and bananas are both positive
fruits to eat

You can have none of one fruit and all of
another or a mixture of some strawberries
and some bananas only.

To have a combination, you must have a
positive amount of both,

2/3=10/15

1/5=3/15

10+3=13/15

2 13/15 is the answer

to find the unit price of an object, you divide the price by object. you are trying to find out how much an object cost per unit.

for instance, lets say you have 50lb of ice cream(object) that cost 8.00 dollars(price). to find the unit cost, we take the 8.00 and divide it by 50, which will give us .16 cents per pound. we can check this by multiplying .16 by 50 = 8.00

so

object = e2

price = d2

unit price = c2

formula for c2:

=d2 / e2

so in my example about ice cream, we would have the following.

e2 = 50

d2 = 8.00

c2 formula:

=d2 / e2

what the question? problem solving?