Answer is number 2
F(3)= (3-1)^2+ 3(3)=4+9= 13 so the first option is wrong
F(-2)= (-2-1)^2+ 3(-2)= 9-6=3 third options is wrong
F(-15)= (-15-1)^2 +3(-15)= 256-45= 211 fourth option is wrong
Angles that equal 180 degrees
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Jin: 3 small candles and 1 medium candle
3s + 1m = 3.85 <-- equation 1
Trish: 4 small candles and 5 medium candles
4s + 5m = 10.45 <-- equation 2
Solving the system of equations,
s = $0.8/small candle
m = $1.45/medium candle