Hideki was given a rare coin 9 years ago. The value of the coin has increased $6 every year since it was given to him. It is now worth $76. Which equation can Hideki use to find the value, v, of the coin after a years of owning it?

1 - v = 6a + 22

2 - v = 6a + 76

3 - v = 6a + 130

4 - v = 9a + 22

3 - v = 9a + 130​

What is the volume of this container?

Use your knowledge of the binary number system to write each binary number as a decimal number. a) 1001 base 2= base 10 b) 1101 base 2 = base 10

1. according to the internal revenue service, the mean tax refund for the year 2007 was $2,708. assume the standard deviation is $650 and that the amounts refunded follow a normal probability distribution. a. what percent of the refunds are more than $3,000? b. what percent of the refunds are more than $3,000 but less than $4,000? c. what percent of the refunds are less than $2,000?