Combine like terms to simlify the expression: 2/5k—3/5+1/10k

The square root of 9x plus 7 plus the square rot of 2x equall to 7

The weight v of an object on venus varies directly with its weight e on earth. a person weighing 120 lb on earth would weigh 106 lb on venus. how much would a person weighing 150 lb on earth weigh on venus?

In the diagram, ab is tangent to c, ab = 4 inches, and ad = 2 inches. find the radius of the circle.