<h3>The better deal would be the the 5kg for $14 price.</h3><h3 /><h3>Why: 5kg is around 11 pounds, so if you bought the 11 pounds on the first site, it would be $24.75. So Lisa would save 10 dollars if she chose the second site.</h3><h3 /><h3>If this answer is correct, please mark it as Brainliest. :)</h3>
Let x be the amount of hours the plumber worked.
Therefore, we get:
40x+65=325
Solve for x.
40x=260
x=6.5
Therefore, the plumber worked for 6.5 hours.