can you please do first three. I'll really of type the answer. thank you

Chapter 3 1. Calculate the fixed costs if: sales price per unit is $12.60; profit is $32,000; the number of customers is 27,812, and the contribution rate is .7. 2. Given the following information, find the sales in dollars: the fixed costs are $70,000, the profit is $23,000, the sales price per unit is $10.00, and the variable cost per unit is $7.00. 3. Given the following information, find the number of customers: fixed costs, $58,922: profit, $9,838; contribution margin per unit, $3.82