Translate the sentence into an equation. Four times the sum of a number and 5 is 3.
Use the variable w for the unknown number.

Select all the correct answers. what is 221,000,000,000,000,000,000 expressed in scientific notation?

Sole with work in 10 years, the average number of hours of tv watched per week by teenagers dropped from 23.9 to 21.4. find the percent of change.

Express in the simplest form: (x^2+9x+14/x^2-49) / (3x+6/x^2+x-56)