Please solve in a big hurry!:

will name the Brainliest!!!

Third one

Step-by-step explanation:

nine more than four times a number:

4x+9

x is the "mystery number"

"is the same as" is just another way of saying "equals"

one less than twice the number ("the number" is just x):

2x-1

put them all together:

4x+9=2x-1

don't over look it; break it down

<3

6mm^3 or .6cm^3

      216

      /   \

  36     6

  /   \     /

6     6   6

factor trees are nice.