What property is x + (3x+20) = 180

Mercury melts at 38 below zero. write this temperature as an integer

The town of manchester (50,000) has the shape of a rectangle that is 5 miles wide and 7 miles long. What is the population density, in people per square mile, in Manchester? Round your answer to the nearest whole number of people per sqaure mile.

How do i simplify 3y-4y+3y

Raj paid $5.04 for 6 cookies. Heath paid $4.00 for 5 cookies. Which of the following statements is true? Raj paid less per cookie. Heath paid less per cookie. Raj and Heath paid the same per cookie.

From the equation 2x+9+3x+x=_x+_, use numbers 0-9 to find no solutions, one solution, or infinitely many solutions

In this equation, is 6 a standard number. n + 6 = 20

Unoccupied 25 story towers sold for 3/4 off their original value. If the towers sold for 16 million what was the original value

Is 1.1 bigger than 0.7

How to add two negative numbers

When a number x is multiplied by 6, the result is 3/8