Shelley spent 17 minutes washing the dishes. she spent 38 minute cleaning her room. explain how can use mental math to find how long shelley spent on the two tasks.

Which expressions are equivalent to -6 + 3m

Aline has a slope of 1/4 and passes through point (0.4,-1/2). what is the value of the y-intercept?

Jackie purchased 3 bottles of water and 2 cups of coffee for the family for $7.35. ryan bought 4 bottles of water and 1 cup of coffee for his family for 7.15. how much does each bottle of water cost? how much does each cup of coffee cost?