Solve the Problem $| 140 - 122 | = - 18$

Multiple Choice

Solve the problem.
-It is recommended that a woman who is pregnant should exercise such that her heart rate does not exceed 140 beats per minute. Use absolute value notation to write an expression that describes the
Difference between the heart rate achieved by each of the following pregnant women and the
Recommended maximum heart rate. Then evaluate that expression. (i) Abigail: 122 beats per minute
(ii) Mathilda: 144 beats per minute

A) (i) Abigail: $| 140 - 122 | = - 18$
(ii) Mathilda: $| 140 - 144 | = - 4$

B) (i) Abigail: $| 122 - 140 | = 18$
(ii) Mathilda: $| 144 - 140 | = 4$

C) (i) Abigail: $122 - 140 = - 18$
(i) Mathilda: $144 - 140 = 4$

D) (i) Abigail: $| 122 + 140 | = 262$
(ii) Mathilda: $| 144 + 140 | = 284$