1. A company uses a computer to identify their 600 most loyal customers
from its database and then surveys those customers to find out how
they like their service. Identify the population and determine whether
the sample is random or biased.

A blood bank needs 6 people to help with a blood drive. 11 people have volunteered. Find how many different groups of 6 can be formed from the 11 volunteers.

Step-by-step explanation:

A blood bank needs 6 people to help with a blood drive. 11 people have volunteered. Find how many different groups of 6 can be formed from the 11 volunteers.

-2

7 - 9 = -2

reversed:

-2 + 9 = 7

the answer would be 1 1/72

step-by-step explanation:

you can rewrite the equation by separating the parts and then solving individually:

10-9=1

1/8 - 1/9=

find l c d and then combine:

1 1/72