Answer:have u got the answer?
Step-by-step explanation:
Answer:
$21
Step-by-step explanation:
1/4 of 28=7
so 28-7=$21
The minimum cost is the y-coordinate of the vertex of the parabola represented by the equation. The x-coordinate is the number of bats.

60 bats should be produced every day to keep costs at a minimum.
Answer:
The distance between these two is 8.
Step-by-step explanation:
To find this, simply subtract the smaller from the larger.
11 - 3 = 8