The total use of electricity in the United States was 0.4 trillion kilowatt-hours in 1950 and about 2.8 trillion kilowatt-hours in 1990. How many times more electricity was there in 1999 than 1950? Use scientific notation

m∠vru = 80°

m∠urw = 15°

step-by-step explanation:

160

step-by-step explanation:

idk

i hope i

1. minimum

2. 6400

3. eight

hope this !

i get you, what you should do is think of the positive things that would come out of it. it will make yours parents proud and raise your grade. you should always try and if you can't focus tell the teacher.