Erwin invested $120,000 in stocks and bonds. If he made a 20% profit on his stocks and a 5% profit on his bonds, and the combined profit was $10,500, how much did Erwin invest in his stocks?

Ican't do any of the other stuff, but i can get you started. the answer, i believe, is $2.50.

The distance between the first bird and the bird watcher is 30 feet, hope this . : )

Its 0.1 fluid ounces.

That little box would be 90 degrees. a triangle should be 180 degrees. 90 + 15= 105. 180-105=75. your answer would be 75 degrees but since you asked for the nearest tenth, it would be 80 degrees.