Given the diagram below, Rachel writes m4 + m5 + m6 = 540degrees - 180degrees. Which of the following reasons allows her to write this statement?

Is 1.00 greater then 0.20

Find the sum: (12x+8y) + (2x-7y)

Under the order of operations what should be done first to evaluate

Simplify. n + 4y + 5n + 3y

Find four solutions in the form of ordered pairs, for the equation y=2x+1

Five times a number is 21 less than twice the opposite of the number. What is the number

What is32.55 as a mixed number in simplest form?

Write an equation that can be solved by first using addition, and then using multiplication. Solve your equation.

In a bag, a child has 325 coins worth $19.50. There were three types of coins: pennies, nickels, and dimes. If the bag contained the same number of nickels as dimes, how many of each type of coin was in the bag?

Which has more moles 2SO3 (g) or 2SO2 (g) + O2 (g)