There are 28 couples at a party Each person shakes hands with every other person,
except their own spouse.
When the party is over, Mr. Smith asks each attendant how
many hands they shook and everyone tells him a different number.
How many hands did Mr. Smith shake?

Mr. Smith shook 54 hands

Step-by-step explanation:

28 couples are a group of two people,so, 28 *2 equals to 55, subract his spouse and it will be 54

the answer to the question is a

step-by-step explanation:

it has the same slope and the same y-intercept.

y + 11 = -7/9(x - 18)

y + 11 =-7/9x + 14

b

y = -7/9x + 3

y-intercept (0, 3)

step-by-step explanation:

i'm pretty sure it would take 20 hours because it's half the men so you multiply the number of hours it takes by 2