7.158 * 10^9 rounds to 7 * 10^9
7 * 10^9 = 7,000,000,000
Answer:
I hope it will help you!
Step-by-step explanation:
-x -2 I think . 3-(-5)= -2 and 2x -3x = -x
To get they total number of the fraction, you first times the bottom, by the number one the side of the mixed number, and then add the top number to the answer. so for the first one, 3*4 = 12 + 1 = 13 so the answer is 13/3, for the next one, 5*1 = 5 + 2 = 7, so the answer is 7/5, and for the last one, 3*3 = 9 + 2 = 11, so the answer is 11/3 so if your to lazy to read this the answers are 1. 13/3 2. 7/5 3. 11/3