Please help I have a timed test will give brainiest ;-;
Which equation, when solved, results in a different value of x than the other three?
-7/8 7 x-3/4=20
3/4+7/8x-20
-7(1/8)x-3/4=20
-7/8(-8/7)x-3/4=20(-8/7)

Aplane flies around trip to philadelphia it flies to philadelphia at 220 miles per hour and back home with a tailwind at 280 miles per hour if the total trip takes 6.5 hours how many miles does the plane fly round trip

Mozart lenses inc. recently introduced seelites, a thinner lens for eyelasses. of a sample of 800 eyeglass wearers, 246 said they would purchases their next pair of eyeglasses with the new lenses. lenses inc. estimates that the number of people who purchase eyeglasses in a year is 1,700,000. most eyeglasses wearer buy one new pair of eyeglasses a year. what is the annual sales potential for the new lenses.

How much orange juice do you need to make 2 servings of lemony orange slush?