exam Maths Puzzle Numerical Ability

It says use substitution to solve each system of equation
The Problem is

0.5x-2y=17 2x+y=104

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exam Other Question

I have a couple more problems today I need steps and solutions for if anyone would be so kind.


Factor each polynomial completely, given that the binomial following it is a factor of the polynomial.


x³ + 2x² - 5x - 6, x + 3
Please help me simplify this problem:

(sqrt a/ 3 sqrt a^2 b^3) 2/3

Answer can be written with radicals or rational exponents.