Central angle is 130
Semi circle is BED and BCD
Major arc is CEB
Measure BAC is 130
BEC is 230
slope intercept form is just solve for y
y+16=3(x-0)
y+16=3(x)
y+16=3x
mius 16 both sides
y=3x-16
3rd option
Chess board? , the board if there is like a line with points that has points on the same line.
6.40x+9.90(154-x)=1230.90
Solve for x
X=84 for child
154-84=70 for adults
