I only need help for number 4 for managerial accounting

College Pizza delivers pizzas to the dormitories and apartments near a major state university. The company's annual fixed expensesare $64.000. The sales price of a pizza is $10 . and it costs the Company $ to make and deliver each piece In the followingrequirements, ignore income taxes*Required .1. Using the contribution -margin approach compute the company's break- Even point in units ( pizzas )_2 What is the contribution - margin ratio ? ( Round your answer to decimal place .^3 . Compute the break - even sales revenue Use the contribution - margin ratio in your calculation ."4 . How many pizzas must the company sell to earn a target profit of $10400? Use the Equation method