Answer:
perimeter: 12x-6
area: 6x-10
Step-by-step explanation:
PERIMETER:
6x-5(2)+2(2)
12x-10+4
12x-6
AREA:
6x-5•2
6x-10
Answer:
-3/4
Step-by-step explanation:
A.) 7y+14. Because 7 is the amount he will increase each year (y) so 7y represents each year added, plus 14 (the amount he already can do per minute)
Answer:
60%
Step-by-step explanation:
The fraction 12/20 in simplest form would be 6/10 which come be converted to a percentage. (6x10)/(10x10)=60/100 or 60%.
The number of possible seats is an illustration of permutation
There are 1728 possible sitting arrangements
<h3>How to determine the number of seats</h3>
From the question, we have the following highlights:
- Chris can only take 1 seat (i.e. the central seat)
- Jo can take 2 seats (i.e. the seats adjacent the central seat)
- Alex, Barb and Dave can take 3! number of seats
- Eddie, Fred, and Gareth can take 3! number of seats on the right of Chris.
- The remaining 4 adults do not have preference, then they can seat in 4! ways
So, the number of sitting arrangement is:

Evaluate the product

Hence, there are 1728 possible sitting arrangements
Read more about permutation at:
brainly.com/question/12468032