A science teacher needs to collect lake water for a laugh she's teaching the lab requires each student to use for fluid ounces of like water is 68 students are participating how many pans of like water with the teacher need to collect?

Plz which expression is equivalent to the expression below?

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

Which ordered pair (c, d) is a solution to the given system of linear equations- c+2d=13 -9c-4d=-15