To find all the different possible combinations, you multiply all the possibilities for each position.
1st - she as 20 different possible buttons
2nd - she would have 19 possible buttons
3rd-she would have 18 possible buttons
20 x 19 x 18=6840 possible ways to choose these buttons.
Answer: The answer is B I swear
Step-by-step explanation:
Answer:
$5.85 = cost for fluffy slime
4r + 2(5.85) = 53.5
Step-by-step explanation:
Let r = cost of regular
f = cost of fluffy
(1) 3r + 9f = 84 (2) 4r + 2f = 53.5
4 x (1) 12r + 36f = 336
-3 x (2) <u> -12r - 6f = -160.5</u>
30f = 175.5
f = $5.85 = cost for fluffy slime
4r + 2(5.85) = 53.5
4r + 11.7 = 53.5
4r = 41.8
r = $10.45 = cost for regular