Hey please help, I'm pretty sure it's C, but I'm not sure if it's a also

Write a function that matches the description. a cosine function has a maximum of 5 and a minimum value of -5. f (r) =

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?

What statement is true? 2x^2-9x+2=-1