Answer:
3 lines of symmetry
Step-by-step explanation:
the lines go through the vertices of the triangle
5x-1=2x+3
subtract 2x from both sides.
3x-1=3
add 1 to both sides.
3x=4
3/4 is .75
answer is 3/4
D=20/3 or in decimal form d=6.666, it keeps going