[tex]\text{We know that Keisha has 36 sugar cookies}\\\\\text{We also know that she has 24 chocolate chip cookies}\\\\\text{We wants to evenly distribute these cookies to her 4 teachers}\\\\\text{First, find the total amount of cookies by adding 36 and 24}\\\\36+24=60\\\\\text{Now divide by 4 to see how many cookies you have to give to each teacher}\\\\60\div4=15\\\\\boxed{\text{Your answer would be 15 cookies}}[/tex]