In the xy-plane, the point (6,3) is the midpoint of the line segment with endpoints (x,5) and (9,y). what is the value of x+y?

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The length of a rectangle is x times the square root of 100. the width is one-half y more than three-halves x. given that the area of the rectangle is 125 cm2, which equation could represent the rectangle in terms of x and y? a) 5xy − 15x = 125 b) 5xy + 15x = 125 c) 15x2 − 5xy = 125 d) 15x2 + 5xy = 125

If x is 6, then 7x= a. 13 b. 42 c. 42x d. 76