Michael made 9/12 of his free throws at practice. what is 9/12 in simplest form i really don't get simplest form

On a piece of paper graph f(x)=5•(0.4)^x

Someone this asap for a group of students attends a basketball game. * the group buys x hot dogs at the concession stand for $2 each. * the group buys y drinks at the concession stand for $3 each. the group buys 29 items at the concession stand for a total of $70. how many hot dogs did the group buy?

Iwill give you ! what is the measure of ∠v ?