Answer:
Option A.
<em>The number of elements in the sample space of this experiment is 84</em>
Step-by-step explanation:
The sample space for an experiment represents the number of possible results that may occur when conducting the experiment.
When throwing a die and observe the number obtained there are 6 possible results
When throwing a coin there are 2 possible results.
When spinning a wheel divided into 7 regions we have 7 possible outcomes.
If we combine these three experiments, then the sample space S is composed of the product of the possible results of each experiment.

The midpoint between points (-3, 8) and (3, -4) is (0, 2)
Answer:
7x + 21
Step-by-step explanation:
7(x+3)
7x + 7(3)
7x + 21