The functions f(x) and g(x) are described below: f(x) = 7x + 9 g(x) = 7x −4 the graph of g(x) is obtained by shifting down the graph of f(x) by units. a.) 13 b.) 9

True or false? a circle could be circumscribed about the quadrilateral below.

If the scale factor between two circles is 2x/5y what is the ratio of their areas?

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.