exam Maths Puzzle Numerical Ability

5/t+1= -8

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exam Other Question

Simplify the rational expressions:

x^2-6x+5/x^2-25

x^2-9x+8/2x-4 divided by x^2-1/2x+2

Simplify:

sqrt[64x^10y^2z^46]

Perform the indicated operations:

4sqrt[18] + 2sqrt[32] - sqrt[8]
in 1996 there were aproxmitely 275 students in the Delaware High School band. In 2002, that number increased to 305. Find the annaul rate of change in the number of students in a band.