Can anyone help with this questions

8. 1.2E

9. 1.2B

Step-by-step explanation:

8.

Two planes intersect at a line.

1.2E

9.

When lines LM and MO intersect, point M is the same point on both lines. Points L, M, and O are not collinear, so they determine a plane.

1.2B

7! = 7×6×5×4×3×2

3! = 3× 2

as 7! is multiple of 3! because 7! contains 3! that is 3× 2 as factor

so 7! /(3! ) = 7× 6× 5× 4

= 42 × 20

= 840

its b) 840✌✌✌

dhruv⭐

yes. we do proportions in probabilities.