Matemática tema: máximacion y minimizacion

el dueño de un campo de 10 hectáreas planta limoneros sabe estadisticamente que si planta 40 limonero por hectárea cada uno de ello le dará 120 limones pero por cada limonero de más que plante esto dara 2 limones
cuantos limones deberé plantar para obtener la mayor cantidad de limones? ?
por me ayudan es para mañ

Find the slope of a line given the following two points

Arestaurant gives out a scratch-off card to every customer. the probability that a customer will win a prize from a scratch-off card is 25%. design and conduct a simulation using random numbers to find the experimental probability that a customer will need more than 3 cards in order to win a prize. justify the model for your simulation, and conduct at least 10 trials.

Need 50 will mark brainliest answer. find the lengths of all the sides and the measures of the angles.