Question

Look at both screen shots worth 100 points

Answer 1

• A=90(1/3)^n

Put n=0

• A=90(1/3)^0

Any no^0 is 1

• A=90(1)
• A=90

Answer is 90

Answer 2

The value of A when n = 0 is 90. This is because whenever anyway is raised to the 0th power but 0, it equals 1, and 90 *1 = 90.