Answer:
1. 2508.96
2. 40123.050624
Step-by-step explanation:
28.26 x 28.26 x 3.14 = 2508.96
113.04 x 113.04 x 3.14 = 40123.050624
<span>each row has 102 seats
there are 7 rows in the auditorium. To find the number of seats in the auditorium
multiply number of rows with seats per row
7x102= 714
total 714 seats</span>
Answer:
Amy is (21.6 - 14.4) 7.2 km/hr faster than Bill.
Distance = speed / time
Amy's speed
40 minutes = 40/60 = 2/3 hours
14.4 = speed / 2/3
Speed = 14.4 * 3/2 = 21.6 km/ hr
Bill speed
60 minutes = 1 hour
Speed = 14.4 km / hr.
It is 780.99999 sorry if i'm incorrect
