Answer:
answer 3:
They are proportion so just put equal sign and see if hey make sense.
Or you can realize that longer side of tringle for the 2 trangles are 10 and 5 and shorter side of triangle are 5 and 2.5 respectively
okay so first we need to multiply 160 on both sides
{18/32(160)=n/160*160 (160 cancels out)}
so once we finish our calculations on the left side we get n equals 90
{n=90}
2x-3=6
2(3)-3=6
multiply the parenthesis
6-3=6
I hope this helped (: