Selecciona la ecuación que modele la siguiente situación: Juan Carlos llevaba $1200.00 cuando fue al supermercado. Después de comprar varios artículos, le sobraron $405.00. ¿Cuánto gastó? * 1 punto
a) x + 405 = 1200
b) 450 – x = 1200
c) 1200 + 450 = x
d) 2x + 1200 = 405

Brook states that the distance on the line is 4 units. caleb states that the whole line does not have a distance because it continues on forever. vivian states that the line is 6 units long. which distance did brook measure? which distance did vivian measure?

Mozart lenses inc. recently introduced seelites, a thinner lens for eyelasses. of a sample of 800 eyeglass wearers, 246 said they would purchases their next pair of eyeglasses with the new lenses. lenses inc. estimates that the number of people who purchase eyeglasses in a year is 1,700,000. most eyeglasses wearer buy one new pair of eyeglasses a year. what is the annual sales potential for the new lenses.

In a certain city, the hourly wage of workers on temporary employment contracts is normally distributed. the mean is $15 and the standard deviation is $3. what percentage of temporary workers earn less than $12 per hour? a. 6% b. 16% c. 26% d. 36%