You are a school photographer taking individual and class pictures for 2 classes of 21 students each. On
average, each individual picture takes 3 minutes and a class picture takes 10 minutes. About how long
should it take you to get all of the pictures?
1 hour 3 minutes
1 hour 13 minutes
2 hours 6 minutes
2 hours 16 minutes
2 hours 26 minutes

The last one

Step-by-step explanation:

Class One

1 Class picture: 10 minutes

21 individuals : 21 * 3 = 63

Class Two

1 class picture : 10 minutes

21 individuals : 3 * 21 = 63 minutes.

Totals

2 class pictures = 10 * 2 = 20 minutes

42 individuals :      63*2 = 126

Total                                   146 minutes

146 minutes / 60 minutes = 146 - 120 = 26

120 minutes = 2 hours

The answer is 2 hours 26 minutes.

(d)

step-by-step explanation:

given: the line in the graph passes through points (5,30) and (6,26).

then, the equation of line is:

now, put y=a(n) and x=n,

hence, option d is correct.