Of the students in the marching band, 55% plan to go to the school dance. If there are
110 students in the marching band that are
going to the dance, how many students
are in the marching band?

The answer is 200 because when you divide 110 from 55% you get 200.

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:

ab: 2 n83b8eb7ebi. 8e yen in