What is the equation of the line that passes through (4, -1) and (-2, 3)?

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.

Ling listed all of the factors of a mystery number: 1,2,4,8,16,32 what is the mystery number?