The sum of andre and brandon's scores on a math quiz is 180. andre's score is 2 times as much as 30 less than brandon's score. find each student's quiz score.

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Find the constant of variation for the relation and use it to write an equation for the statement. then solve the equation.

Given that y varies directly to the square root of (x + 1), and that y = 1 when x = 8,(a)express y in terms of .x,(b)find the value of y when x = 3,(c)find the value of x when y = 5.