10×1/4 write as mixed number

When are triangles considered similar? a. corresponding angles are equal andcorresponding sides are proportionalb. corresponding angles are proportional andcorresponding sides are equalc. corresponding angles are equal orcorresponding sides are proportionald. corresponding angles are proportional orcorresponding sides are equal select the best answer from the choices providedmark this and retumsave and exitnext

Which one is the correct answer, and why?

Olga bought a new skirt that cost $20. sales tax is 5%. how much did olga pay, including sales tax? 7.