exam Maths Puzzle Numerical Ability

Factor: -2 - 2z + z^2

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exam Other Question

Common and Natural Logarithms

For the exponential function e^x and logarithmic function log x, graphically show the effect if x is doubled. Business and finance. When x number of units are sold, the price of each unit (in dollars) is given by p= -x/2+75. Find the unit price when the following quantities
are sold: 2, 7