The speed of train a is 12 mph slower than the speed of train b. train a travels 210 miles in the same time it takes train b to travel 270 miles. find the speed of each train.
the speed of a train is ?
the speed of b train is?

Katlyn made 4 dresses with 7 yards of fabric. how many yards did she use on 1 dress?

Barney & noblet customers can choose to purchase a membership for $25 per year members receive 10% off all store purchases 1. how much would a member pay per year if he bought $50 worth of items each year? 2. write a slope-intercept equation that expresses how much a member pays per year using x to represent his purchases per year 3. how much would a member have to spend per year to pay off his membership fee?

Given: klmn is a parallelogram m? n=3m? k, lf ? kn , ld ? nm kf=2 cm, fn=4 cm find: lf, ld