exam Maths Puzzle Numerical Ability

Solve each of the following by graphing
3x-y=3
3x-y=6

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exam Other Question

Q1. |z|<6

Q2. |x|<= -7

Q3. -3+ |5x-2| <4

Q4. |8x+3|>0 When x number of units are sold, the price of each unit (in dollars) is given p=-x/2 + 75. Find the unit price when the following quantities are sold: 2, 7, 9, 11.

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