Are questions 4-7 True or False

Use the following information to answer questions 4 and 5 : A cost analyst estimated the following model via regression, with the indicated results: TrueorFalse?DPCOST=+INTARRGD+ 4. If INTARRGD is expected to be 200 , the expected DPCOST would be $83,372. 5. If INTARRGD is increased by 1 , then the expected increase in DPCOST is $6,173. 6. If the break-even point is 100 units, the sales price is $10 per unit, and fixed costs are $300, then the variable cost per unit is $3. 7. Bob sells two products, X and Z. X sells for $10, and has variable costs of $8;Z sells for $20, and has a 30% CMR. During 2021, Bob sold 60 units of X and 140 units of B. If Bob's fixed costs are $12,000, his break-even point is 2,500 units