Answer:
Step-by-step explanation:
arithmetic sequence: 60,68,76,......
a = 60
d = 68 - 60 = 8
an = a + (n-1)*d
a20 = 60 + 19 * 8
= 60 + 152
= 112
There are 112 seats in the 20th row
Answer:
I think its the 3rd one but i am not sure.
Step-by-step explanation:
Answer:
About 5.495 miles
Step-by-step explanation:
0.5 • 3.14 = 1.57
1.57 • 3.5 = 5.495
Since one meter is equal to 100 centimeters, then 1.2 meters must be 120 centimeters
