Dany is tutoring Abe. Below are the results of two check-up quizzes.
Write the score of Abe’s first quiz (21 out of 30) as a percent.

  70%

Step-by-step explanation:

A fraction (or any number) is converted to a percentage by multiplying by 100%.

  21/30 × 100% = 70%

Abe's score on the first quiz is 70%.

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:

b

step-by-step explanation: