X: 4 units of a and 5 units of b per hour
y: 3 units of a and 10 units of b per hour
cost to run machine x: $22/hr
cost to run machine y: $25/hr
4x + 3y = 90
5x + 10y 2 150
x20
y 20
x=number of hours machine x runs
y=number of hours machine y runs
the objective function is c=
y.

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

2 liters for 10   people

step-by-step explanation: