Let n represent the amount Colin earned on Sunday.
On Sat. he earned n/2; on Sun. he earned n; and on Friday he earned (1/2)(n/2).
Then n/2 + n + n/4 = $70
Mult. all terms by 4 to eliminate fractions:
2n + 4n + n = $280
7n = $280 => n = $40
Colin earned n/2, or $20, on Saturday; n, or $40, on Sunday; and n/4, or $10, on Friday.
Note that $20 and $40 and $10 add up to $70, as they must.
M = -1/2
B = 1
Equation shown is y = mx + b
Step-by-step explanation:
126 / 2 = 63 because the circular angle is 1/2 of the center angle
I believe the answer is -26 :) I hope this helps! ^_^