If a=(10,4) an b=(2,19) what is the length of ab

The height of a triangle is 4 in. greater than twice its base. the area of the triangle is no more than 168 in.^2. which inequalitycan be used to find the possible lengths, x, of the base of the triangle?

Asmall foreign car gete 42 miles per gallon and user 35 gallons on a trip. gasoline costs $1.05 per gallon. what was the cost of gasoline per mile driver?

Polygon abcde is reflected to produce polygon a′b′c′d′e′. what is the equation for the line of reflection?