a bookstore costs $120 a day to keep open, and it spends $14 for each book that it sells. 11
each book sells for $20, what is the break-even point for this bookstore

The break-even point for this bookstore is 20 units

Explanation:

We know that break even point is given by the following formula,

Here, we are given that bookstore costs $120 per day to keep open so fixed cost = 120$

Price per unit = price of each book =20$ and

variable cost = $14

Substituting these in the formula, we get

=   = 20

20 units which is the The break-even point for this bookstore.

given that triangle abc is transformed two times to get triangle

a"b"c"

first abc is transformed in to a'b'c' as follows:

the coordinates of a are (1,-1) and transformed into a'(-1,1)

similarly b (4,-2) became b'(-4,2) and

c(7,-2) became c'(-7,2)

i.e. (x,y) becomes (-x,-y)

this is nothing but reflection about a point here origin.

thus first transformation is reflection on the origin.

next is exactly shifting 3 units down

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