Tony has -$18.75 in his bank account. if he deposits $19.00 into his account what is his new account balance?

You add positive 19 into negative 18.75 to get 0.25

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.