exam Maths Puzzle Numerical Ability

8x - 6 = -48

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exam Other Question

Divide.

7x to the 5th power y to the 5th power - 21x to the 4th power y to the 4th power + 14x to the 3rd power y to the 3rd power OVER 7x to the 3rd power y to the 3rd power Jenny inherits $42,900 and invests it for a year in two stocks. Stock A earns 12.5% annually and stock B earns 8.5% annually. How much did she invest in each stock if stock B earned three-quarters as much as stock A?