exam Maths Puzzle Numerical Ability

Solve the system by graphing, addition and substitution methods
4x - 4y = -8
y = 2 + x

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exam Other Question

May I have some help with this inequality?

Solve the linear inequality. Express the solution using interval notation.

5 < -2x + 9 ≤ 9 What is the horizontal asymptote of the function y=4(2^x)+3?