Step-by-step explanation:
Sally mass = 70 kilograms
Dave mass = 170 pounds ≈ 77 kilograms
Sally's mass as a percentage of Dave's mass = (70/77)x100
Sally's mass as a percentage of Dave's mass ≈ 91 %
There has to be a decimal in order to round to the "hundreths" place. I'm assuming you meant ".091" in which case you would look at the hundreths column, which is a 9. Then to round, you look at the number to the right of the number you're rounding, if it's greater than 5 you round up, less than 5 you stay the same. Since the number to the right is 1, your final answer is ".09"
It is first option salt water is it?
Well 746÷40=18.65 so would that be 18?