Answer:
a summary is an average and an average is mean
Step-by-step explanation:
to get the mean add all the cakes sold together then divide by number of years
21+28+19+26+21=115
115/5=23
so....
first one: mean
second one: 23
Answer:
$156.86
Step-by-step explanation:
$136.40 + 15% = $20.46
$136.40 + $20.46 = $156.86
Answer -0.54 a line on both 5 and 4
Step-by-step explanation:
Answer:
The solution is

Step-by-step explanation:
The given equations are

and

The graph of the two equations intersects at
as show in the graph in the attachment.
The point of intersection of the two graphs is the solution to system of equations.
Hence the solution is
