A plane traveled 1500 miles with the wind in 2.5 hours and 1400 miles against the wind in the same amount of time. Find the speed of the plane in still air and the speed of the wind
The speed of the plane in still air is
(Simplify your answer.)

On the first of each month, shelly runs a 5k race. she keeps track of her times to track her progress. her time in minutes is recorded in the table: jan 40.55 july 35.38 feb 41.51 aug 37.48 mar 42.01 sept 40.87 apr 38.76 oct 48.32 may 36.32 nov 41.59 june 34.28 dec 42.71 determine the difference between the mean of the data, including the outlier and excluding the outlier. round to the hundredths place. 39.98 39.22 0.76 1.21

Divide the following fractions 3/4 ÷ 2/3 1/2 8/9 9/8 2

Me d is also an option but i couldn't get it in the picture