Can someone also me on this one? will mark brainliest too : )

5.b

6.a

7.c

8.e

9.d

Step-by-step explanation:

it's equivalent, so we can say that its equal.

let's call the denominator x and the numerador is 18 less then denominator, x - 18.

multiply

2.x = 5.(x - 18)

2x = 5x - 90

90 = 5x - 2x

90 = 3x

x = 90/3

x = 30

so:

step-by-step explanation:

this is not possible to solve with the info given.   you need at least an one angle somewhere.