book Maths Puzzle Numerical Ability

Gowdy invested $2400 in the common stock of one company and $1280 in the stock of another. The price per share of the second was four-fifths the price per share of the first. The n

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How do you find the answer to this word problem:

The perimeter of a rectangular garden is 40ft. The width is 2ft. more than one-half the length. Find the length and width. how do you solve equations that have different logs: log5(x-4) = log7x, solve for x
The 5 and the 7 are little