En una tienda venden un producto que tiene un descuento directo al pagar en caja del 20%, por el aniversario del establecimiento todos los artículos de la tienda tendrán un 30% adicional. ¿ Qué porcentaje de descuento final ofrece la tienda?
a)40
b)46
c)50
d)54
explicación por favor ​

Can u guys do this ratio question. this is extremely urgent a tap is leaking water at a rage of 1l every 8 hours. how long will it take for the tap to leak a total of 300ml?

Complete the solution of the equation. find the value of y when x equals to 28 x+3y=28

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?