exam Maths Puzzle Numerical Ability

A garden area is 30 ft long and 20 ft wide. A path of uniform width
is set around the edge. If the remaining garden area is 400 ft2, what is the width of the path?

Taken from Beginning Algebra 6th Edition Ch. 10 Pg.835

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exam Other Question

Suppose you deposit $20,000 for 3 years at a rate of 8%.
a) Calculate the return (A) if the bank compounds annually (n = 1).

b) Calculate the return (A) if the bank compounds q For about what value(s) of x does g(x) = k(x) if g(x) = x^3 + 2x^2 and k(x) = x^3 � x^2 + 6?
a. x = � 2.3
b. x ≈ 2.3
c. x ≈ � 1.4
d. x ≈ 1.4