Here the right side of the 2 equations (which are different) both equal y
so 0 solutions
Answer:
Answer:
50.2
Step-by-step explanation:

The answer is B, 7.6-(-1.7)=9.3
3x92 = 276 (first 3 exams)
average of at least 90 (90 x 4 = 360)
360 - 276 = 84
Answer
<span>she needs to score at least 84 on the fourth exam </span><span>in order to guarantee a final average of at least 90</span>