Afence is to be built to enclose a rectangular area of 280 square feet. the fence along three sides is to be made of material that costs 4 dollars per foot, and the material for the fourth side costs 15 dollars per foot. find the dimensions of the enclosure that is most economical to construct.
dimensions: x

b, i believe, but not sure.

22

step-by-step explanation:

22

change of stock price/initial stock price on friday * total stock value = change of stock value

0.89/73.73 *x = 42.72

x=3539.04 = total stock value at initial stock price on friday .

total stock value at initial stock price on friday/ initial stock price on friday = number of shares

3539.04/73.73 = 48 shares

they own 48 shares of this stock