True or False: A research analyst was directed to arrange raw data collected on the yield of wheat, ranging from 40 to 93 bushels per acre, in a frequency distribution. He should choose 30 as the class interval width

A 100 percent markup at cost equals what markup at retail?

a. 20 percent b. 40 percent c. 50 percent d. 80 percent

What combination of x and y will yield the optimum for this problem?

Minimize $3x + $15y, subject to 1. 2x + 4y ? 12 and 2. 5x + 2y ? 10 and 3 . x, y ? 0. A) x = 2, y = 0 B) x = 0, y = 3 C) x = 0, y = 0 D) x = 1, y = 5 E) x = 0, y = 5