This is 2/21. You can simplify the 4 in -4/7 to 2 and the 6 in -1/6 to 3. So it would now be -2/7 times -1/3. A negative times a negative is a positive, so the answer will be positive. 1 times 2 is 2 and 7 times 3 is 21. 2/21
Answer:
4 hours mowing lawns and 4 hours washing cars. 6 hours washing cars and 2 hours mowing lawns.
Step-by-step explanation:
Car washing gets paid more so it would only be fair if he worked more hours of washing cars than mowing lawns. Hope this helped you!!