I believe it would be 38.1
Solution for both: (-2,2)
solution for equation one: (0,8)
solution for equation two: (0,6)
Kelly makes 4 candles per hour (12/3=4). Lee makes 6 candles per hour (6/1=1). In 8 hours, Kelly makes 32 candles (4*8=32). In 8 hours, Lee makes 48 candles (6*8=48). The difference in the numbers of candles is 16 (48-32=16).
Answer: 12+5i
the conjugate of a complex number a+bi is the number a-bi
Let: hypotenuse = a , known leg = b , unknown leg = c
According to Pythagoras' Theorem:

c =

c = 3.74 inches
∴ the length of the hypotenuse to 1d.p. ≈ 3.74 inches