David is building wooden picture frames. Each fame requires 3/4 feet of wood. If David started with 12 feet of wood and now has 6 feet of wood remaining, how many picture frames has he built?

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.

Solve for x and y a x= 13.3 y= 16.7 b x= 23.3 y= 12.5 c x= 7.5 y= 16.7 d x=7.5 y= 12.5

If cos(2x) = tan^2(y), show that cos(2y) = tan^2(x).