Ana bought 324 gallons of milk last month at $3.30 per gallon and ​ 314 gallons of milk at $3.20 per gallon this month. What was her total cost?

When using the linear combination metho e linear combination method to solve a system of linear equations, the four options are:

Abag contains 4 red, 7 blue and 5 yellow marbles. event a is defined as drawing a yellow marble on the first draw and event b is defined as drawing a blue marble on the second draw. if two marbles are drawn from the bag, one after the other and not replaced, what is p(b|a) expressed in simplest form? a. 7/16 b. 7/15 c. 14/16 d. 14/15

Ahiker stands at an unknown elevation before he ascends 2 miles up a mountain to an elevation of 9 miles. find the elevation of the hiker before his ascent.