John and 4 friends are going out for pizza for lunch. they split one pizza and 5 large drinks. the pizza cost $12.00. after using a $5.00 gift certificate, they spend a total of $14.25. write an equation to model this situation, and find the cost of one large drink.

well if the pizza costs $12.00 then that leaves $2.25

$14.25-$12.00=$2.25

and then take $2.25 and devide it by 5 for the amout each soda costs

$2.25/5=$0.45

each soda costs $0.45

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

source:

so, converting firstly the mixed fractions to improper fractions and then "adding".