el saldo de mi tarjeta telefónica es de 12000 si cada minuto cuesta 250 y habló durante 4 minutos Cuál será el saldo que me queda utilice espacio para hacer el proceso​

Olivia uses the work below to determine 55% of 720 which explains the error in olivia’s solution

Which of the statements about the graph of the function y = 2x are true? check all of the boxes that apply. the domain is all real numbers x because the exponent of 2 can be any real number when the x-values increases by 1 unit, the y-value multiplies by 2. the y-intercept is (0, 1). the graph never goes below the x-axis because powers of 2 are never negative. the range is all real numbers.

The focus of parabola is (-4, -5), and its directrix is y= -1. fill in the missing terms and signs in parabolas equation in standard form