Question

Please helppp!!!

Answer 1

98 dollars every year

Hope this helped

Answer 2

Answer: The value of x is 30 dollars.

Step-by-step explanation:

Since we have given that

Number of dollars in his investment account on Jan 1, 2001 = x

Number of dollars in his investment account on Jan 1, 2005 = 480

Number of years = 4

According to question, the amount of money in the account doubled each year.

so, it becomes,

$480=P(2^4)\\\\480=P\times 16\\\\P=\dfrac{480}{16}\\\\P=30$

Hence, the value of x is 30 dollars.