PLEASE ANSWER ASAP !! HAS TO BE DONE AT 11:59 LOL

What is the perimeter of an equilateral triangle if each side is (x+3)?

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

Ellie spent $88.79 at the computer stote. she had $44.50 left to buy a cool hat. how much money did she originally have? write and solve an equation to answer the question.