Answer:
There is no way it can equal 360 since 60+120+150+75=405? Was it a typo?
Step-by-step explanation:
Answer: 26
Step-by-step explanation:
lets replace a and b with the numbers provided
2+4(2+4)=2+4(6)=2+24=26
The initial term of this geometric series is 4, and the common ratio is -1/2. The sum is given by

The sum is
approximately 2.66.
Answer:
Mr. Herrera will hike 78 miles on 6th day.
Step-by-step explanation:
Given:
Number of miles Mr. Herrera will hike in 9 days = 117 miles
Total Number of days =9 days
Let us first find the number of miles he will hike in 1 day
By Using Unitary method we get,
Number of miles Mr. Herrera will hike in 1 days= 
We need to find miles hiked in 6th day.
Number of miles Mr. Herrera will hike on 6th day= Number of miles Mr. Herrera will hike in 1 days
Number of days = 
Yes u have to and as long are you do than you would be right