I need help on these questions can u make sure u do all of them cuz some people just only do one problem.

3x

Step-by-step explanation:

the distance between 0 and C = x

to make b 3 times distance of c to 0 we should multiply by 3

so X × 3 = 3X

if the distance of c to 0 equal to 1 cm means that x = 1

3x = 3

so be should place b 3 cm away from 0

the least common denominatore of 7 and 2 is 9

step-by-step explanation:

7+2=9

pay attention in your classes and concentrate the best thing you can do to raise your test scores is to pay attention when you're supposed to be learning the material: in class!

take good notes.

do your homework.

use mnemonics and other tricks.

do practice tests.

note: the best i know.