book Maths Puzzle Numerical Ability

Solve each equation.

a + 4 = a + 4
_ ____
2 a

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book Other Question

Each month a gas station sells x gallons of gas at $1.92/ gallon. The cost to th owner of the gas station is $37,000. Write an equation that relates the monthly profit, in dollar The Eiffel Tower is 497 ft. taller than the Washington monument. If you take 58 ft. off both heights, the Eiffel Tower is twice as highas the Washington monument. How tall is each tower?