An iron fence reacts with the oxygen in the air to form rust. the formation of rust is an oxidation-reduction reaction and a reaction. a. decomposition b. combustion c. synthesis d. single-replacement

Option B. Combustion

Step-by-step explanation:

An iron fence reacts with with the oxygen in the air to form rust.

In this process iron combines with oxygen of the air forming rust. The formation of rust is an oxidation-reduction with the release of energy.

Rusting of iron is an exothermic process as heat is released during rusting process.

Therefore, it's a kind of slow combustion reaction.

Option B. is the answer.

so firstly, we need to isolate the y variables to be able to solve these inequalities. firstly, add 0.5x on both sides of the first inequality and subtract 1.5x on both sides of the second inequality:

now since the slope is positive for the first inequality, this means that the line going upwards belongs to the first inequality, and the line going downwards belongs to the second inequality.

next, since y ≥ in the first inequality, this means that the shaded region will be above the first inequality's line, thus shading regions a and b.

next, since y ≤ in the second inequality, this means that the shaded region is going to be below this line, thus shading regions a and c.

since both lines shade region a, this means that region a is the solution.

step-by-step explanation:

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