when a crew rows with the current, it travels 21 miles in 3 hours. Aginst the current, the crew rows 9 miles in 3 hoyrs. let x= rhe crew's rowing rate in still water and let y= the rate of the current. find the rate of rowing in still water and the rate of the current

∆abc is reflected across the x-axis and translated 2 units up to give the image ∆a'b'c' with coordinates a'(1, 1), b'(2, -1), c'(2, 1). what are the coordinates of the preimage ∆abc? a. a(-1, 1), b(-2, 3), c(-2, 1) b. a(1, 1), b(2, 3), c(2, 1) c. a(1, -3), b(2, -1), c(2, -3) d. a(1, -3), b(2, -5), c(2, -3)

Need 50 will mark brainliest answer. find the lengths of all the sides and the measures of the angles.

Suppose a store sells an average of 80 cases of soda per day. assume that each case contains 24 cans of soda and that the store is open 10 hours per day. find the average number of soda that the store sells per hour.