PLEASE I'M STRUGGLING AND I NEED HELP ASAP MY ASSIGNMENT IS TIME Given the equation y = 40(1.2^)x, what type of equation does this represent?

exponential decay

exponential growth

none of the above

liner growth

linear decay

The blood alcohol concentration (BAC) of a 150lb man after 5 drinks is about 0.125. BAC greater than 0.08 will result in a DUI. The BAC decreases at a rate of about 0.016% each hour. What is this man’s BAC after 3 hours?

0.119

0.122

.002

not enough information

A fisherman illegally drops some fish into a pond, and they quickly propagate (reproduce). The population growth of the new specifies is modeled by P(x) = 6b^x, where x is the time in weeks following the moment he dropped the fish into the pond and b is a positive unknown base. Find b if you know the lake contains 55 fish after 8 weeks.

1.32

7.5

1.23

1.43