2. Joe, Brett, and Nick buy a television. Brett pays twice as much as Nick, and Joe pays three times as much as Brett. If the television cost $90, how
much did Brett pay?
(A) $10
(B) $20
(0) $30
(D) $45
(B) $65

C 30$

Step-by-step explanation:

Lets say Brett is X and Joe is y so lets make an equasion to solve for x.  Y=X times 3. We know that Y is 90 so we can say 90=X times 3. Now what is 90 divided by 3? 30 so we can say 30=X

answer:

the position of equilibrium will shift to the left.

step-by-step explanation:

the general equation for the dissociation of a weak base is

b + h₂o   ⇌   bh⁺ + oh⁻

according to le châtelier's principle, when a stress is applied to a system at equilibrium, the system will respond in a way that tends to relieve the stress.

if you apply a stress by adding more bh⁺ or oh⁻,   the system will respond by moving in a direction that gets rid of the added ions.

the position of equilibrium will shift to the left, forming more of the undissociated base.

step-by-step explanation:

1. practice, practice & more practice

2. review errors

3. master the key concepts

do not try to memorise the processes.

4. understand your doubts.

5. create a distraction free study environment

6. create a mathematical dictionary

7. apply maths to real world problems.