Which expression represents the product of 3 and (5/4n + 1.8)? (show work )
a) 5.55n
b) 9.15n
c) 3.75n + 1.8
d) 3.75n + 5.4.

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?

You are at a restaurant and owe $38 for your meal. you want to leave a 20% tip. how much will your tip be?

Simplify the following expression 48^1/2