Answer:
mary=x
andrew=8
jim=2*8=16
together=4*mary
total=8+16=24
24/4=x
x=6
Step-by-step explanation:
It means the figure is 1/4 the size of the original figure

the the negative angle is -(2π-π/4)= -\frac{7 \pi }{4}
Answer:
C.
Step-by-step explanation:
The average distance between Jupiter and the sun is
or
kilometers,
The average distance between the sun and Neptune is
The approximate difference between these average distances is:



Are you asking about the sigma sign used for sequence additions?