X by its self is always 1x
1x+8=-15 you have to get rid of 8 by subtracting on both sides
1x=-23 now get rid of 1 by dividing on both sides
x=-23
Answer:
.85
Step-by-step explanation:
Start at the end.
The 5 makes the 7 an 8, which makes the 8 an 9, which makes the 4 a 5.
A billion is 9 zeroes
1.96 is already less than 10 and greater than or equal to 1 so
1.96 times 10^9 is answer
A is answer
The common ratio is 2:1, or dividing by 2