Respuesta :

Answer: B

Step-by-step explanation:

line 1: 10

line 2: 9

line 3: 8

line 4: 7

line 5: 6

line 6: 5

Answer:

Step-by-step explanation:

Given the first line has 10 marbles and each following line has one less, the general equation is the nth line will have 10-(n-1) marbles.

So the sixth line has 10-(6-1) = 5 marbles.