A bag of marbles contains 3 yellow, 2 red, 2 green, and 1 blue marble. What is the probability of selecting a green marble?

2/8

Step-by-step explanation:

There are 2 green marbles.

In all, there are 8 marbles.

So, the probability is 2/8.

Ratio: 2:8/1:4

Percentage: 25%

Step-by-step explanation:

add all the marbles then put it in the denominator. the amount of green marbles will then be placed in the numerator to get 2:8 which simplifies to 1:4 and id you want percentage its 25%

Given:
Height of triangular prism = 2 cm
triangular base of the prism = height = 5cm ; base 4cm

Base area = (5cm*4cm)/2 = 20cm² / 2 = 10cm²

Volume of triangular prism = base area * height
V = 10cm² * 2cm
V = 20cm³