**Answer:**

Part a) The equation that represent the balance in the account after 2 years is equal to

Part b) The balance in the account after 2 years is equal to

**Step-by-step explanation:**

we know that

The compound interest formula is equal to

where

A is the Final Investment Value

P is the Principal amount of money to be invested

r is the rate of interest in decimal

t is Number of Time Periods

n is the number of times interest is compounded per year

in this problem we have

substitute in the formula above

----> equation that represent the balance in the account after 2 years

**Answer: **

**The answer would be 1275 if they get paid for half the money on the 9th song**

**Step-by-step explanation:**

Answer:

5/6

Step-by-step explanation:

Answer: have each experimenter test randomized blocks of conditions.

Step-by-step explanation:

Randomized block design is a technique used in controlling nuisance in an experiment due to excessive variables, experimental conditions, etc which can make the experiment complex/ complicated.