If you can do any one of these It would be just fine. (MARKING BRAINLIEST!!)

Atrain leaves little? rock, arkansas, and travels north at 90 kilometers per hour. another train leaves at the same time and travels south at 80 kilometers per hour. how long will it take before they are 680 kilometers? apart?

Hurry efficient homemakers ltd. makes canvas wallets and leather wallets as part of a money-making project. for the canvas wallets, they need two yards of canvas and two yards of leather. for the leather wallets, they need four yards of leather and three yards of canvas. their production unit has purchased 44 yards of leather and 40 yards of canvas. let x be the number of leather wallets and y be the number of canvas wallets. if the profit on a canvas wallet is $25 and the profit on a leather wallet is $40, write a function for the total profit for both wallets.

Use the distributive property to write an equivalent expression for -1/2 (4 minus 6x)