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12 nickels

21 dimes

16 quarters

Step-by-step explanation:

9 extra dimes : 9 x 10 = 90

4 extra quarters : 4 x 25 = 100

total of the extras : 100 + 90 = 190

remaining amount: 670 - 190 = 480

remaining amount are made up of equal number of nickel, dimes and quarters, thus

5 + 10 + 25 = 40 ( 1 set of each type)

480 / 40 = 12 sets

therefore there are

12 nickels

12 + 9 = 21 dimes

12 + 4 = 16 quarters

3-4

step-by-step explanation:

the answer is 3-4 because both 45 and 60 has a multiple of 15.

45/3=15

60/4=15

therefore the odds against selecting a red is 4-3