Which of the following is a function?

Afruit stand has to decide what to charge for their produce. they need $10 for 4 apples and 4 oranges. they also need $15 for 6 apples and 6 oranges. we put this information into a system of linear equations. can we find a unique price for an apple and an orange?

Describe the 2 algebraic methods you can use to find the zeros of the function f(t)=-16t^2+400.

Find the solution set of this inequality. enter your answer in interval notation using grouping symbols. |8x-4| ≤ 12