Ed is 7 years older than ted Ed’s age is also 3/2 times ted’s age how old are we and ted?

A. Ted is 15 years old Ed it 22 years old
B. ted is 14 years old Ed is 22 years old
C. Ted is 13 years old and Ed is 20 years old
D. ted is 12 years old and Ed is 19 years old

Find the commission on a $590.00 sale if the commission is 15%.

Me max recorded the heights of 500 male humans. he found that the heights were normally distributed around a mean of 177 centimeters. which statements about max’s data must be true? a) the median of max’s data is 250 b) more than half of the data points max recorded were 177 centimeters. c) a data point chosen at random is as likely to be above the mean as it is to be below the mean. d) every height within three standard deviations of the mean is equally likely to be chosen if a data point is selected at random.

Does anyone know how to solve and graph this: 4 + | a + 2 | < 7the only part i don't get is the "4 +"