a fast food restaurant can produce a hamburger for $2.50. if the restaurant's daily sales are increasing at the rate of 30 hamburgers per day, how fast is its daily cost for hamburgers increasing?

The daily cost of hamburger is increasing by $75

Step-by-step explanation:

The fast food restaurant produce a hamburger at $2.50

if the sales are increasing by 30 hamburger per day,

then the daily cost if hamburger is increasing by:

$2.50 * 30 hamburger per day

= $75