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11. a particular type of cell doubles in number every hour. which function can be used to find the number of cells present at the end of h hours if there are initially 4 of these cells? a. n = 4 ()" b. n = 4(2)" c. n = 4 + (2)" din = 4 +"

Solve the given system of equations. 2y= -x+9 , 3x-6= -15

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