book Maths Puzzle Numerical Ability

2(5a-2)+3(4-7a)=-25

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book Other Question

which one is the correct one? "the square of four more than a number,"

X+4 (2) or (x+4)2 why? Phil is driving to Seattle which is 190 miles away. How many gallons of gas will he use if his car gets an average of 24 miles to the gallon?