Please help and tell me how you got the answer. Will mark brainlist!

1. 540 cm^3

2. 448 cm^3

Step-by-step explanation:

1. Volume of rectangular prism is height times width times length, hwl, or

18*7.5*4 = 540, 540 cm^3

2. Volume of triangular prism is surface area of base times length

the length is 14 cm, and the base is the triangle, The area of a triangle is half of the base times the height, 1/2b * h. The base of this triangle is 8 cm, and the height is also 8 cm, 1/2(8) * 8 = 4*8 = 32, 32 times the length of the triangle is 32*14 = 448 cm^3

answer: the area of the parallelogram below is 42 square meters.

- officialprodixy ☕

14.3

step-by-step explanation:

add all the numbers together.

9 + 12 + 15 + 16 + 17 + 17 = 86

now, divide 86 by how many numbers we have: 6.

86 / 6 = 14.3