1- el doble de la edad de juan mas la mitad de su edad es mayor que su edad aumentado en 15 ´¿cual es la minima edad que puede tener juan?
ayuda porf rapido

2- cinco veses la edad de doris menos el doble de su edad resulta ser menor que la mitad de su edad mas 40
¿ cual es la maxima edad que podria tener doris ?

Agreeting card company can produce a box of cards for $7.50. if the initial investment by the company was $50,000, how many boxes of cards must be produced before the average cost per box falls to $10.50?

For which of the following counts would a binomial probability model not be reasonable? a)the number of people in a classroom born in januaryb) the number of people in a classroom with red hair c) the number of people admitted to a hospital in a day with a particular disease d) the number of heart beats in a one-minute perio.

Find the x-intercepts of the parabola withvertex (1,1) and y-intercept (0,-3).write your answer in this form: (x1,if necessary, round to the nearest hundredth.