Answer:
Variable cost per mile = 0.22 per mile
Total fixed cost = $312
Step-by-step explanation:
If she drives 2,900 miles then,
Total operating cost = $950
If she drives 4,000 miles then,
Total operating cost = $1,192
Using high low method,
variable cost per mile:


= 0.22 per mile
Hence,
Total fixed cost = 1,192 - (4,000 × 0.22)
= 1,192 - 880
= $312