Se compran 30 libros a S/ 720, si se pierden 10 libros, ¿a cuánto debo vender cada uno de los restantes para ganar un total de S/180?

Solve for the equation. 4x - 13 = 2x + 9

Find the combined area of the triangles. click on the answer until the correct answer is showing.possible answers: a = 4 pi - 8a = 9 pi - 9/2 √3a = 16/3 pia = 16a = 27 pi

Consider u = {x|x is a negative real number}which is an empty set? o {x|x eu and x has a negative cube root}o {x|x eu and x has a negative square root}{x|x eu and x is equal to the product of a positive number and -1}{x|x eu and x is equal to the sum of one negative and one positive number?