30:60:90
3:6:9
1:2:3
I can’t make sense of given answers
Y= -5.3x + c
-7.1= -5.3(-2.4) + c
C= -12.72-7.1 = −19.82
Y= —5.3x-19.82
n has less than 75 copies
sold 12
so add the 12 back
n had less than 87 copies in the beginning of the day
:)
I think the answer is 2 (D) Hope this helps :D