x+y=1096500/529979

Percentage difference = (difference/original)x100

80-68= 12

(12/80)x100= -15% or by 0.85

Solved simeltaneously (assuming the question),

x=12 and y=-1

a= -35,0,35

Respectivley B= -7,0,7

x=1/10

x1= 1/2

𝑎≥𝑏≥0≥𝑐.

\({ \ {1} \over 3 root 2 +4}\\\)

Awesome thanks, I had trouble typing it into the calculator, but that notation works.

2/7 of 77 is 22

77-22=55.

2/5 of 55 is 22

55-22=33.

3 of these scores are for Cyprian.

Therefore;

His scores must add up to 180 for the mean to be 90.

His scores must be 85, 92 and 94.

The remaining values add to 278/3 = 92.6 recurring, round as needed.