Which best describes two figures that are similar?​

The area of a 25-inch tv screen is 300 square inches. the area of a 40-inch tv screen is 768 square inches. the are of the smaller screen is what percent of the area of the larger screen?

Fractions can be added and subtracted only if they're fractions. a. like b. proper c. improper d. unlike

Which fraction is not equivalent to 8/12 a. 2/3 b. 24/36 c. 4/10 d. 6/10