Amanda can jog 18 3/4 miles in 5 hours. at this rate, how many miles can she run in 4 hours?

Set up a proportion
18  3/4    =  n
   5              4

Cross multiply across the = sign
5 x n= 5n   and 18 3/4 x 4 = 75
5n = 75     now divide both sides by 5
5       5
n=15  Amanda can jog 15 miles in 4 hours.

Formulas for marine are 28 gallons per teaspoon.  30gal (28t/1gal) the gallons cancel leaving teaspoons = 840 teaspoons there are 8floz = 1cup 1floz = 2 tablespoons 3t = 1 tablespoons it's 31.11111111111111. so if you round to the nearest cup it would be 31. idk if this but i'm sure it will.