Abag contains ten tiles labeled b c d e f g h i j and k of picking a letter that is not a vowel

The probability of picking a non-vowel  = 9/10

Step-by-step explanation:

Each letter has an equal probability of being picked.

Vowels; e

Number of vowels =1

Non-vowels; b,c,d,f,g,h,l,j,k

Number of non-vowels= 9

Probability of picking a non-vowel = 9/(1+9) = 9/10

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:

answer: all of the odd numbers were opened

the first person was the one that was opening all of the lockers. since one is odd, this causes all of the odd number lockers to be opened in the end.