The best way to solve this would be by the use of a table.
x) 1 2 3 4
y) 9 15 21 27
As you can see, the y value increases by 6 each time. Therefore d=6 or the common difference is 6
Answer:
I got 65
Step-by-step explanation:
The profit will be given as:
P=$15x−$225
(where we subtracted the cost of the mower) so that P=$750
x will be the required number of needed lawns.
We need to solve:
$750=$15x−$225
rearranging:
x=$750+$225 / $15 =65 lawns
