Which is equivalent to (-2m +5n), and what type of special product is it?
4m2+25n; a perfect square trinomial
4m2+25n; the difference of squares
4m2-20mn +25nº; a perfect square trinomial
4m2-20mn +25n2; the difference of squares

Lizette is training for a marathon. at 7: 00 she left her house and ran until 8: 30, then she walked until 11: 30. she covered a total distance of 18 miles. her running speed was six miles per hour faster than her walking speed. find her running and walking speeds in miles per hour.

Divide reduce the answer to lowest term 3/7 divided 1 1/6

Which of the following domains provide a real value periods