The amount of cola in a soda machine decreases by a rate of 5% each hour. The amount of
cola in the machine was originally 75 gallons. Write a function that models the amount of cola,
S (in gallons), after h hours.

Find the value of the cosine for angle a

Select the lengths in centimeters that would form a right triangle

Hector and alex traded video games. alex gave hector one fourth of his video games in exchange for 6 video games. then he sold 3 video games and gave 2 video games to his brother. alex ended up with 16 video games. how many video games did alex have when he started?