Write a proportion for: a train can travel 126 miles in 3 hours. How many miles can the train travel in 5 hours?

Math i have no idea how to do a and b

Aramp rises 4 feet over a distance of 10 feet. what is the length of the ramp?

Gigi earned $65 for 5 hours of gardening. she earned $90 for 9 hours of office work. which statement correctly compares gigi’s earning per hour for gardening and office work? she earned $3 more per hour for office work than for gardening. she earned $4 more per hour for office work than for gardening. she earned $3 more per hour for gardening than for office work. she earned $4 more per hour for gardening than for office work.