Find a mystery number. The mystery number is described this way:

Sixteen more than I of the mystery number

is equal to two times the mystery number.

What is the mystery number?

The value, v, of kalani’s stock investments over a time period, x, can be determined using the equation v=750(0.80)^-x. what is the rate of increase or decrease associated with this account? 20% decrease 20% increase 25% decrease 25% increase