Let <em>f(x)</em> be the sum of the geometric series,

for |<em>x</em>| < 1. Then taking the derivative gives the desired sum,

Answer:183.4
Step-by-step explanation:
90/11=8.181818 1500/8.1818 = ≈183.4 time you would roll six
The system of equations becomes:
s + u = 28 This represent the number of candles sold
16s + 10u = 400 This represents the value of the candles sold
Answer: 5.54
Step-by-step explanation:
amount of tax paid = item cost * tax rate
item cost = 63
tax rate - 8.8% = 0.088
tax paid = 63 * 0.088 = 5.54