Jim and his wife, Pam, went to a Valentine’s Day party where four other married couples were present. Every person shook hands with everyone he or she did not know. When they sat down for dinner, Jim asked everyone, including Pam, how many hands they shook. To his surprise, Jim receivednine different answers. How many hands did Pam shake?

step-by-step explanation:

first, eliminate the parenthesis:

3

x

+

2

−

4

x

second, group like terms:

3

x

−

4

x

+

2

third, combine like terms:

(

3

−

4

)

x

+

2

→

−

1

x

+

2

→

−

x

+

2

answer: what in the world is this

step-by-step explanation:

the probability that a bird is green (.30) is true

step-by-step explanation:

191 students play sports and ninety-seven 10th graders were surveyed.

step-by-step explanation: