1. Which pair of numbers is relatively prime?
A)143 and 63
B)43 and 172
C)22 and 143
D)110 and 77

2. Which pair of numbers is relatively prime?
A)119 and 209
B)88 and 121
C)144 and 165
D)42 and 385

Add the two expressions 3.8b - 7 and 2.9b + 9 enter your answer in simplified form

∆red ≅ ∆ by rule will give brainiest if possible

Someone answer asap for ! 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.