exam Maths Puzzle Numerical Ability

express as a single logarithm 4 log a + 9 log b

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exam Other Question

Simplify the expression, and combine like terms.
11). -9 + 5(4 - 9m)

Solve the equation.
12). n/5 = 15

Write the phrase as an algebraic expression, using x for any unknow what is eight times the first of three consecutive odd integers is ten more than twice the second