exam Maths Puzzle Numerical Ability

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

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exam Other Question

thanks for your help, I need to perfom the indicated operations
perform the indicated operation
2y - 3y[4 - 2(y - 1)]

perform the indicated operation
(4x - 3y)2 Can someone Help me solve this problem?
Find the distance from first base to third base on a baseball diamond if the distance between bases is 90 feet.