What is the coefficient of n in the expression n-9? Explain your reasoning.

What was the original price if: after a 70% discount it became $3b?

What is 3a-3 with grouping symbols?

How many neutrons does element X have if its atomic number is 22 and its mass number is 73? Your Answer:

Beth draws pens randomly from a box containing 6 pens of the same shape and size. There is 1 green pen, 4 red pens, and 1 blue pen. She draws 1 red pen and then another red pen without replacing the first one.

What is - 25 + 25 + - 871 + 92 + - 2282 + 3y + 3y

Three increase by a number all multiplied by 6 equals 36

Rewrite y = x2 + x - 20 in factorized form.

40 is what percent of 50

Explain the meaning of significant digits in measurement

A stock trading company charges a commission of $10 per trade plus $0.025 per dollar value of stock traded. If your commission is $140, what was the value of the stock you traded?