Answer:
69
Step-by-step explanation:
5x-2y=3
-5x+4y=9
2y= 12
divide it by 2
y= 6
put y in any equation
5x-2 (6)=3
5x-12=3
5x= 3+12=15
divide by 5
x=3
y= 6
The graph on #6 describes a scatterplot. Because years of experience is the input, this makes the starting salary our output. Finding the best fitting line in a scatterplot requires the line to follow a trajectory similar to that of the points. As a result, there will be outliers. Since I don't know what "the calculator" is meant by this problem, I have used a different program. I hope it works for you. Good luck.
Rob has R quarters, and David has R + 24 or 24 more than rob, so together they have 2R+24
X + 8x = 81
9x = 81, x = 9
y = 8(9), y = 72
Solution: (9, 72)