Which problem can be solved using this inequality? 3x - 72 20

A)
Three times a number x less seven is less than twenty. Solve for x
Three times a number x less seven is less than or equal to twenty. Solve
B)
for x
09
Three times a number x less seven is greater than or equal to twenty.
Solve forx
D)
Three times the difference of a number x and seven is greater than or
equal to twenty. Solve for x

The equation of a parabola is given. y=18x2+4x+20 what are the coordinates of the focus of the parabola?

In a rectangle klmn, km = 6x + 16 and ln = 49. find the value of x

(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