book Maths Puzzle Numerical Ability

The area of a rectangle is 64 in. sq. If the area is increased by 25% what is the dimension of the new rectangle?

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book Other Question

Evaluate the function for the value specified - you need to arrive at a final numerical answer for each part. f(x) = x2 - 7x + 10
Find:
a) f (0)

b) f (5

c) f (-2)
what percent is equal to the fraction 7/8?(the possibilites are .875%, 8.75%, 87.5%, or none of these)