Tell whether each situation is a combination problem or a permutation problem. There are 100 comic books to choose from at the local hobby store. How many different sets
of 10 comic books could you choose to buy?

Permutation
Combination

The jewelry store is having a sale. necklaces that were regularly priced at $23.50 are on sale for $18.80. what is the percentage of decrease in the price of necklaces?

What is the lcm of 16 and 40 ? 24 and 40 ?

Mr. jones determined that the equation y = 98 - 16/5 x could be used to predict his students' unit test scores, based on the number of days, x, a student was absent during the unit. what was the meaning of the y-intercept of the function? (by the way the 16/5 is a )