Mrs. middleton makes a solution to clean her windows. she uses a 2: 1 ratio for cups of water to cups of vinegar. if mrs. middleton uses a gallon of water to make the window cleaner, how much vinegar does she need?

Explain how you can use the associative property to evaluate (7x50)x4.

Haruka hiked several kilometers in the morning. she hiked only 66 kilometers in the afternoon, which was 25% less than she had hiked in the morning. how many kilometers did haruka hike in all?

The linear combination method is applied to a system of equations as shown. 4(.25x + .5y = 3.75) → x + 2y = 15 (4x – 8y = 12) → x – 2y = 3 2x = 18 what is the solution of the system of equations? (1,2) (3,9) (5,5) (9,3)