Last year a website had 40,000 visitors and this year it had 37,000 visitors. what is the percent change in the number of visitors to the website from last year to this year

Step-by-step explanation:

The percent change formula is

original number - new number all divided by the original number times 100.  For us that looks like this:

which simplifies to

which is a 7.5% decrease.

207/8 is the right

answer: all of the odd numbers were opened

the first person was the one that was opening all of the lockers. since one is odd, this causes all of the odd number lockers to be opened in the end.