. If your lake can support a maximum of 500,000 fish and you stock it with 250 reproducing pairs of trout, you might want to open the lake to fishing after, say, 100,000 fish are present. If your fishery expert samples the population after 3 months and finds 2500 fish, about how long from that point would you have to wait to open the lake commercially

The formula that can be used to determine the number of cupcakes sold is x = 0.2p - 0.6y.

Step-by-step explanation:

Given:

p = 5x+3y (1)

The formula that can be used to determine the number of cupcakes sold, i.e. x, given p and y, can be obtain by solving for x in equation (1) above as follows:

5x = p - 3y

Divide through by 5, we have:

x = P/5 - (3/5)y

x = (1/5)p - (3/5)y

x = 0.2p - 0.6y

Therefore, the formula that can be used to determine the number of cupcakes sold is x = 0.2p - 0.6y.