A: the mean salary is $500.
400+500+600=1500/3=500
b: the median is $500 also.
Answer:
x=3/2 or 1.5
Step-by-step explanation:
Screenshot below should help :)

now, the one below that, which is equivalent to that? well, just look above it
Answer:
26 degrees
Step-by-step explanation:
90-64=26
Hope this helps!