Answer:
3ac + bc
Step-by-step explanation:
c(3a + b)
Distribute (multiply) the c to the numbers in the parentheses.
c * 3a = 3ac c * b = bc
3ac + bc
Because there are 6 letters in WINNER, you can use factorials to find out how many ways the letters can be arranged.
Factorials are represented with the ! symbol. Use the factorial of 6 to solve the problem:

There are
720 different ways the letters can be arranged.
10 times 147 equals 1470
10 x 147 = 1470
We can write an equation in terms of n, the amount of nickels:
25(3n+3)+10(n+1)+5n=265.
Thus:
90n+85=265
Subtracting 85, we have:
90n=180
Therefore, n=2. As such, Danielle has 2 nickels, 3 dimes, and 9 quarters.