Why doy you think that 89 and - 89 are called additive inverses

Which situation shows a constant rate of change

7 identical toys weigh 1.4 kg. a) Convert 1.4 kg to grams. b) What is the weight of one toy? Give your answer in grams. c) How much would 3 toys weigh? Give your answer in grams.

If x+7=23, then x=16 what property is this

Brent biked 600 meters on Friday. On Saturday he biked 5 kilometers. On Sunday he biked 4 kilometers, 800 meters. How many kilometers did Brent bike over the three days?

The Pierre is 200 m long. Each board is 80 cm wide. How many boards are in the pier?

How is exponential growth and decay used in everyday life?

Suppose there are 20 questions on a multippe choice. if 25% of the answers are choice B how many, how many of the answers are not choice B

3x4y2/xy2 simplify the following expression step by step

The music for Nadia's dance routine lasts for exactly 4 minutes. When Nadia dances her routine, she starts with her music and finishes 12 seconds before the music ends. What percent of the time the music is playing is Nadia dancing? and ...

What is the difference between a Angle bisector and altitude?