Square tiles (12 inches by 12 inches) are used to cover a rectangular countertop containing 40 square feet. How many tiles are needed to cover the countertop? I WILL GIVE BRAINLIEST!!!:)

144

Step-by-step explanation: First turn both of these measures into centimetres ( you don't have to do this but it makes it A LOT easier)

A Square foot is 144 square inches

You can fit one of these tiles in one square foot

Meaning forty is required

I hope this is right take my word for it

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.

more detail

step-by-step explanation: