exam Maths Puzzle Numerical Ability

Mardi received an inheritance of $50,000. She invested part at 7% and deposited the remainder in tax-free bonds at 12%. Her total annual income from the investments was %4500. Find

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For the polynomial, list each real zero and its multiplicity. Determine whether the graph crosses or touches the x-axis at each x-intercept.
f(x) = (x + 1/5)^2(x^2 + 5)^3 What type of transformation occurs when y=x^3 becomes y=(x+3)^3 as a graph? Thank you.