I ould really do with some help on this example i got in a revision booklet i have. Any input is great...thankyou.

product 1 needs 0.3 of A

0.1 of B

product 2 needs 0.2 of A

0.1 of B

0.1 of C

At most there is 1400 units of A, 500 units of B, and 400 units of C

Profit = 0.90 on each product 1 and 1.00 on each product 2.

If product 1 = X and product 2 = Y,

1)Show that they can make an profit(p) of at least P = 0.9X + Y