Laura checked her outdoor thermometer and noticed that the temperature rose from 31 degrees in the morning to 45 degrees in the afternoon. What is the approximate percent increase for the day so far?
O The percent increase is approximately 31%.
The percent increase is approximately 45%.
O The percent increase is approximately 68%.
O The percent increase is approximately 82%.

Can someone with this one pre-calc question? the finishing time for a runner completing the 200-meter dash is affected by the tail-wind speed, s. the change, t, in a runner's performance is modeled by the function shown below: t= 0.0119s^2 - 0.308s - 0.0003 predict the change in a runner's finishing time with a wind speed of 3 meters/second. note: a negative answer means the runner finishes with a lower time. round to the nearest hundredth.

Find the area of an equilateral triangle with a side of 6 inches

Complete the solution of the equation. find the value of y when x equals -5. -4x - 8y = -52