Translate the sentence into a equation

three more than the quotient of a number and 4 is equal to 8.

use variable x for the unknown number

Which is the equation of an ellipse with directrices at x = ±4 and foci at (2, 0) and (−2, 0)?

Julius sold five times as many computers as sam sold last year. in total, they sold 78 computers. how many computers did julius sell?

The length of a shadow of the building is 36m. the length of the pole, which is perpendicular to the ground, is 1.9m. the length of the pole's shadow is 1.52m. what is the height of the building?