15. Answer the following questions,
a) Find the total of 23.7, 43.1 and 89

What is the value of the digit 1 in the number 13?

Look at the following graph of the given equation. determine whether the equation is a function. explain why or why not.

Boris needs to buy plastic spoons. brand a has a box 42 spoons for $2.37. brand b has a box of 72 spoons for $3.57. find the unit price for each brand. then state which brand is the better buy based on the unit price. round your answer to the nearest cent.