Dados los puntos p1 (1, -7) y p2 (-3,5). Calcular representacion grafica d p1 p2, pto medio de p1 p2, la pendiente (m) de la recta que pasa por medio de ellos. Quien me ayuda porfa​

Ascientist has 50 grams of a radioactive element. the amount of radioactive element remaining after t days can be determined using the equation (1) after two days the scientist receives a second shipment of 50 grams of the same element. the equation used to represent the amount of shipment 2 remaining after t days is 10) - 50 which of the following is an equivalent form of the expression for the amount remaining in shipment 2? what’s the answer?