Answer:
13 = 13
Step-by-step explanation:
13 is a prime, so 13 is its only prime factor.
Answer:
810
Step-by-step explanation:
There is a few ways to get the result.
Lets try this.
First calculate how many minutes are in the 5 hours.
60min*5=300min - in 5 hours
Now, knowing that quarter is 15min we can divide 300 by 15 to get the result, so
300:15=20 - its the result.
Step-by-step explanation:
length of mall=84m
length of post office=38m
how much longer is the mall than the post office=84-38= 46m

This is a geometric series with a common ratio between successive terms that is less than 1 in absolute value. This means the series will converge. The value of the sum is

.