Answer:
It would take Beth twelve minutes to wash the car herself
Step-by-step explanation:
If they do it together in 6 minutes.
& Katy can do it in 18 minutes alone
Then 18 - x = 6
replace x for twelve
18 - twelve = 6
Ans: twelve
there is the answers for this one
x < 100
x - 19 < 81
* add 19 to each side *
- 19 + 19 cancels out
81 + 19 = 100
455 divided by 7 should be it.