Which equation is true? 1. −34 +43=0

2. −425− 425= 0

3. 49+(−49) = 0

4. 227−(−227) = 0

What is (28 + 7 + 6 + 3) x 1/2 show your work

Acourt reporter is transcribing an accident report from germany. the report states that the driver was traveling 80 kilometers per hour. how many miles per hour was the driver traveling?

The architect's side view drawing of a saltbox-style house shows a post that supports the roof ridge. the support post is 8 ft tall. the distance from the front of the house to the support post is less than the distance from the post to the back of the house. how far from the front of the house is the support post positioned?