Me the cost, c, to produce b baseball bats per day is modeled by the function c
b. = 0.06b2 – 7.2b + 390. what number of bats should be produced to keep costs at a minimum?

What is the sum of these mixed numbers 2 1/8 + 4 3/8

Find the difference (8ab+a+2) - (3ab+6)

Asurvey of 45 teens found that they spent an average of 25.6 hours per week in front of a screen (television, computer, tablet, phone, based on the survey’s sample mean, which value could be the population mean? 2.3 hours 27.4 hours 75.3 hours 41.5 hours