If 2a^2 +3^1a - 5a^2= 9, then a-a^2=

Which basic geometric term has no width, no length, and no thickness? line b. point c. angle d. plane

The distance between two cities is 368 miles. if the scale on the map is 1/4 inch=23 miles, what is the distance between the cities on the map?

Ametal rod needs to be 9 feet and 5.5 inches in length. the sections of the poles being used are each 1 foot and 10.5 inches long. how many 1ft 10.5in sections would be needed to complete the 9ft 5.5in metal rod? and how many inches of material will be left?