Houston got a summer job with his friend Nelson. The both work by cutting grass. At the end of the summer both boys wanted to save 2400 together to buy themselves a car. At the end of the summer Houston had lost half of his earnings which was 1800. They were still able to save enough money to reach 2400. How much did Nelson save?

Which expression is equivalent to? assume x > 0 and y > 0.

If the tip varies directly with the number of guest which equation represents between the tip,t, and the number of guest,g?

(co 3) the soup produced by a company has a salt level that is normally distributed with a mean of 5.4 grams and a standard deviation of 0.3 grams. the company takes readings of every 10th bar off the production line. the reading points are 5.8, 5.9, 4.9, 6.5, 5.0, 4.9, 6.2, 5.1, 5.7, 6.1. is the process in control or out of control and why? it is out of control as two of these data points are more than 2 standard deviations from the mean it is in control as the data points more than 2 standard deviations from the mean are far apart it is out of control as one of these data points is more than 3 standard deviations from the mean it is in control as the values jump above and below the mean