What's the square root of 1 billion

Solve: 25 points find the fifth term of an increasing geometric progression if the first term is equal to 7−3 √5 and each term (starting with the second) is equal to the difference of the term following it and the term preceding it.

Divide. –40 ÷ –5 a –8 b 200 c -200 d 8

Solve 17= -13 - 8x and show your work.