At noon, a tank contained 8 in. of water. After several hours, it contained 2 in. of water. What is the percent decrease of water in the tank?

Two fire-lookout stations are 190 miles apart, with station a directly south of station b. both stations spot a fire. the bearing of the fire from station a is upper n 55 degrees upper e and the bearing of the fire from station b is upper s 60 degrees e. how far, to the nearest tenth of a mile, is the fire from each lookout station?

To which sets of numbers does -12 belong? choose all answers that are correct. a) natural numbers b) integers c) real numbers d) irrational numbers

Find the number of real number solutions for the equation. x2 + 5x + 7 = 0 0 cannot be determined 1 2