book Maths Puzzle Numerical Ability

Clark's spaceship follows a circular orbit around Earth before landing. It has an equation of : x^2 + y^2 = 64.
An asteroid follows elliptical orbit about Earth.
It has an equati

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book Other Question

express the sum or difference of the logarithm. express powers as factors

log x^3(sqrtx+1)/(x-2)^2

I really dont understand how to do these. Can some one please expain them Admission to a baseball game is $3.50 for general admissions and $6.50 for reserved seats. The receipts were $4491.50 for 967 paid admissions. How many of each ticket were sold?