I need help. So supposed that you have three diffrent lenghts of linking cubes

Question

as shown below . ( 5 blacks, 3 whites 2, reds) Assume that you have as many of these lengths as you need, but you may not take them apart.

a) 25 d) 29
b) 20 e) 30
c) 18 f) 32

Grade 7 Math.

Answer 1

pls answer as soon as posible.

Answer 2

Try writing the question exactly and completely as given to you without interpretation. I don't know what you are looking to find.

Answer 3

very good