Hi pls help me I'm mad struggling

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Find the maximum value of p= 4x + 5y subject to the following constraints :

Amayoral candidate would like to know her residents’ views on a public open space before the mayoral debates. she asks only the people in her office. her co-workers are an example of a census population convenience sample simple random sample

Use the zero product property to find the solutions to the equation (x+2)(x+3)=12