Alliya spent $6.70 on 12 pencils at the store. her cost included $0.46 sales tax.

how much did each pencil cost before the sales tax was added?

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:

19.side- angle- side

20. angle- side- angle

step-by-step explanation: