Triangle abc is similar to triangle def . the length of ac is 10 cm. the length of bc is 15 cm. the length of df is 6 cm.
what is the length of ef?

12

6

10

9

Asquare is dilated by a scale factor of 1.25 to create a new square. how does the area of the new square compare with the area of the original square? a)the area of the new square is 1.25 times the area of the original square. b)the area of the new square is 2.50 times the area of the original square. c)the area of the new square is 1.252 times the area of the original square. d)the area of the new square is 1.253 times the area of the original square.

Haruka hiked several kilometers in the morning. she hiked only 66 kilometers in the afternoon, which was 25% less than she had hiked in the morning. how many kilometers did haruka hike in all?

1) you deposit $2,500 in an account that earns 4% simple interest. how much do you earn in eight years?