63 is 90% of what number in a number line

Which ratio is equivalent to 10: 85

The table above shows approximate conversions from gallons to liters. what is the value of x?

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.