What is 7.8×105 hours in days? a)1.872×10^4 days b)3.250×10^6 days c)1.872×10^8 days d)3.250×10^4 days

  D)  3.250×10^4 days

Step-by-step explanation:

You know there are 24 hours in a day, so the number of hours must be divided by the hours per day to find the number of days:

  (7.8×10⁵ h)/(2.4×10¹ h/da) = (7.8/2.4)×10⁵⁻¹ da = 3.250×10⁴ da

Step-by-step explanation:

draw a tangent starting from (0,80) and touches at (10,60)... Example attached if needed... Good Luck! ;)