The equation of the parabola whose focus is at (7, 0) and directrix at x = -7 is: A. y = (1/28)x²
B. x = (1/28)y²
C. x = -(1/28)y²

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

:24% of students in a class are girls. if there are less than 30 students in this class, how many students are there? how many girls are there?

Helll ! 1,400 tons of wheat of two different varieties was delivered to the silo. when processing one variety, there was 2% of waste and 3% during the processing of the second variety of wheat. after the processing, the amount of remaining wheat was 1,364 tons. how many tons of each variety of wheat was delivered to the silo?