Antonia earns $6 per hour helping her grandmother. How many hours does she need to work to earn $48?

10 ! a train starts from grand city and travels toward belleville 388 miles away. at the same time, a train starts from belleville and runs at the rate of 47 miles per hour toward grand city. they pass each other 4 hours later. find the rate of the train from grand city.

From the beginning of the day the temperature rose 15 degrees so that by 4 pm it was 87 degrees. what was the temperature at the start of the day

Idon't get undoing if its pass adding and subtracting so can someone ? x-2 over 5 = 18