Answer:
3.5 × 10³
Step-by-step explanation:
Leave one whole number (1 to 9) before the decimal point.
3.500
Count how many decimal places it moved to get next to 3.
There are about 3 decimal places moved.
So,
3.5 × 10³ is the answer
B
Recall that
So now
y=-1
-5y+8=-3y+10
-5y-(-3y)+8=10
-5y+3y=10-8
-2y=2
y=2/-2