Aphoto studio that takes school pictures offers several different packages. let w equal the cost of a wallet-sized portrait, and lot
i equal the cost of an 8 x 10 portrait,
basic package: 30 wallet sized photos, 1 8" 10" portrait $17.65
deluxe package: 20 wallets-sized photos, 38" x 10" portraits $25.65
what is the cost of an 8" x 10"photo?

b and c

step-by-step explanation:

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