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What is the value of “r” in the given equation? Be sure to write your answer as a number and use the “-” sign if you think the answer is negative.   

Find f(-4) for the following.     f(x) = x2 – 3x – 1

Find the product.    (5t5z6)(5t2z2)

Divide c2 – 16c + 63 by c – 9.

Solve using the quadratic formula.     4×2 – 16x – 20 = 0

Divide the monomials.    

What is the value of “x” in the given equation? Be sure to write your answer as a number and use the “-” sign if you think the answer is negative.   

Multiply and simplify where possible.    

Simplify the expression.    

Simplify the complex fraction. For your answer just enter the numerator (top of fraction), and make sure all variables are written in lowercase with NO spaces in your answer.