Let x represent the number of hours he worked during the weekdays (not Saturday or Sunday).
If x is how much he worked on the weekdays and he worked 5 times as much on Sat and Sun, then hopefully you agree that on Sat and Sun he worked 5x hours.
So we have 5x hours on the weekends and x hours on the weekdays, so in total for the whole week we have 5x + x = 6x hours in total.
The question tells us that he worked 30 hours total, so 6x = 30
Divide both sides by 6 to isolate x and we have x = 5.
He worked 5 hours the rest of the week.
Hope this helps. If it does, please be sure to make this the brainliest answer! :)
The first thing we must do is find the amount of land that will be used for the 120 lots.
We must remember that 10% of the land will not be used for the lots.
We have then:

Then, we must consider the following conversion of units:

Applying the conversion we have:

Then, the amount of square feet for each lot is given by:
Answer:
There will be 32670 square feet in each lot.
3z^2 + 4x + 2x^2 - x + 1
5x^2 + 3x + 1: the answer is c