Lori has 18 new stamps to add to her collection. she displays the stamps on pages of an album in groups of either 3, 6, or 9 stamps. how many different ways can she display the 18 new stamps?

4896 ways

Step-by-step explanation:

This is a permutatiom problem, since order does matter.

18P3 = 18!/(18-3)!

=18 × 17 ×16 ×15! / 15!

=18×17×16

=4896

hey there!

if she's saving for six months, let's divide the total number we need for the trip by six, dividing it into the amount that needs to be saved for each month.

500 ÷ 6 =

she needs to save at least this amount each month, so we should use this symbol: ≥

let x be the amount she saves each month.

your final answer is x ≥

hope this !

c.

step-by-step explanation:

she should of added 9^2 and 12^2. that is because it is a^2+b^2=c^2. c^2 is the hypotenuse and should always be bigger than the other two numbers. which is why she should of added 9 squared and 12 squared together instead of 15 squared.