It means that when you are doing the right thing you have no anxieties or worries that bother or alarm you if the question of how you handled something arises, particularly to keep you awake and uncomfortable.
It means to find the numerical value of the expression.
It means that two expressions represent the same number.
Pillow can be used as a noun or a verb. There are two meanings to it. Using pillow as a noun refers to the object we use for sleeping or as a part of the cushion in a furniture. Using pillow as a verb may mean in support of or as protection against blows. Example: "During a heavy wind and rain, Elizabeth pillowed her child with her body." or "Too exhausted to run, he found the closest mound of dry earth to rest as on a pillow." However, in writing, it's best to keep it simple - pillow works best as a noun.
Be more specific what is a "term" and an "expression" I am gonna assume by term you mean terms of a sequence, of course you can. Take a sequence of functions, each function is a graph, some of them can be written as expressions. My argument is definitely Calculus.
For each of a list of algebraic expressions, find one or more common factors and factorise the expression.
It means you can sleep easily at night knowing you have a clear conscience.
A good, or clear, conscience means that you have done nothing of to apologise for, or are ashamed of.
'Classify the following expressions'
evil conscience
In brief it means a person has a good perception of right and wrong and follows this perception.
A green pillow means it was made with eco friendly materials.
The Chinese as well as other cultures, recognize the cricket as a sign of good luck. Finding a cricket on your pillow whether it is making noise or not, would be seen as a sign of good luck because it is in your home.
Do you mean a throw pillow? It's a small pillow usually found on the sofa or floor used for either decoration or comfort.
Go away
A clear conscience is a wall of brass, which is indicative of the karmic nature of doing good deeds
There is no Hebrew equivalent for this.
枕 (makura) is Japanese for pillow(s). If by 'okpillows' you mean 'good pillows' you could use いい枕 (ii makura).