need help with 25 and 26

The local McDonalds restaurant sells two main products: Big Macs and McChicken Sandwiches, McDonalds sells its Big Macs at $5.00 each and the variable costs per hamburger are $2.50 McDonalds sells its chicken sandwiches at $4.00 each and the variable costs per chicken sandwich are $3.00. McDonalds expects its sales mix to be 50% hamburgers and 50% chicken sandwiches and fixed costs to be $800,000 Based on this information, how many total hamburgers and chicken sandwiches must the restaurant sell to break even (round to the nearest dollar)? In which of the following stages in the value chain would you most likely incur costs of memory chips to make computers? Multiple Choice Production Customer Service Research and Development Distribution