Answer:
B
Step-by-step explanation:
Trapezoids have only one pair of parallel lines.
Rate = 2 seats/11 minutes = 2/11 seats/min
Therefore the time required for s seats is
That is,
m = (11s)/2 min
When s = 16, obtain
When s = 19, obtain
Answers:
When s = 16, m = 88 min
When s = 19, m = 104.5 min
Because there are only two things you can do with these two " family" members. 81 divided by 9 is 9. 9 times 9 is 81. Strictly speaking, there should be three in the family: 9,9 and 81 9 is the square root of 81. 81 is the 9 squared.