Based on the systems of equations given, the number of real solutions for each system is:
To find out the number of solutions, you should plot the equations on a graph.
When system A is plotted as shown attached, you notice that line y = 1/2x intersects x² + y² = 17 twice. It therefore has two solutions.
When system B is plotted, y = -6x + 5 does not intercept y = x² + 7x + 10 which means that there are no real solutions.
System C shows only one real solution because 8x - y = -17 intercepts y = -2x² + 9 once.
Find out more on real solutions at https://brainly.com/question/4526506.
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