Richard practice each of 3 piano solos for 5/12 hour. how long he practice in all? . i have 4 answer and i don't undertand 2/3 hours , 1 1/4 hours, 1 1/3 hours, and 1 5/12 hours. for me.

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.

Cody was 165cm tall on the first day of school this year, which was 10% taller than he was on the first day of school last year.

Jessie and bob are financing $425,500 to purchase a house. they obtained a 30/8 balloon mortgage at 6.55%. what will their balloon payment be?