Solve the following simultaneous equations 5x+7y = 17 ; 7x+5y = 19
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If c(x) = 4x – 2 and d(x) = x2 + 5x, what is (cxd)(x)

Which recursive formula can be used to determine the total amount of money earned in any year based on the amount earned in the previous year? f(n+1)=f(n)+5

Two variables, x and y, vary inversely, and x=12 when y=4. what is the value of y when x=3?