Why does dividing by 100100 shift each digit two places to the right? ?

What are “like terms”? why can we only add like terms?

Find the condition that the zeros of the polynomial f(x) = x^3+3px^2+3px+r may be in a.p.

At your job you're paid $50 per week plus $3 per sale at least how many saled do you need to make in order to have over $250