If you divide the price (10.80) by the weight (7lbs) you would get 1.54 per lbs
Well, we could make the number of lawns he mowed as 'L'
In this case, the total money that Gavin makes is 8.5L
Https://us-static.z-dn.net/files/d2a/4dd214e6e402aa7e840049f27983c856.jpeg
Answer:
If our random variable of interest for this case is X="the number of teenagers between 12-17 with smartphone" we can model the variable with this distribution:

And the mean for this case would be:

And the standard deviation would be given by:

Step-by-step explanation:
If our random variable of interest for this case is X="the number of teenagers between 12-17 with smartphone" we can model the variable with this distribution:

And the mean for this case would be:

And the standard deviation would be given by:

The answer is 14+8.125π units².