How she has left:
3 - 2 = 1
She has 1 candle left.
Step-by-step explanation:
Solve by Subsitution

Replace this into the second equation


Write in standard form

Use the quadratic formula, and our answer will be
(6.97,43.02)
(43.02,6.97)
The trigonometric values for a right triangle can be obtained through the measurements of the different sides,

this can be found in a triangle like this,
then, identify the measurements in the given triangle
then,