Rearrange the equation so r is the idpendent variable 10q -5r= 30

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Toyland is having a sale. all items are 20% off. how much will you save on an item that usually sells for 95$ explain your

Jordan rides his bike 6 7/15 miles every day to deliver newspapers and to go to and from school. if his ride to and from school is 4 3/10 miles, how many miles is the trip to deliver newspapers? 1 1/3 1 1/6 2 1/6 2 4/5

Answer question above and explain each step : )