When invested at an annual rate of 5%, an amount earned php 15,000.00 of simple interest in 2 years. how much money was initially invested?

Find dy/dx using implicit differentiation ln(20+e^xy)=y

Omar is going on a road trip! the car rental company offers him two types of cars. each car has a fixed price, but he also needs to consider the cost of fuel. the first car costs $90 to rent, and because of its fuel consumption rate, there's an additional cost of s0.50 per kilometer driven.

Pls the last one and it has to be like number 6