If a is the number of events, then a = 1. Plugging in 1 for a in the equation

, you get

.
Total cost is $9.
Answer:
the formula is y = mx + b. (m) represents slope and (b) represents the intercept
Step-by-step explanation:
So with that formula and info given, you can form the equation y = 35x + 550
Answer:
She deposited $7500. So it is the principal.
At the end of years, she had total of $8700.
So the total amount is $8700 and the time period is 2 years.
Interest = Total amount - principal = $8700 - $7500 = $1200
We need the rate of interest.
we know that Interest = PTR/100
⇒1200 = 7500*2*R/100
⇒R = 1200*100/7500*2
⇒R = 120000/15000 = 8%
Rate of interest is 8%
Step-by-step explanation:
640 Diveded by 8 = 80 and 80 diveded by 6 = 13 R2