A Pedro le dieron de aguinaldo el triple de lo que recibe de sueldo en un mes. Si pagó una deuda de $4500.00 y aún le quedaron $7500.00, ¿ cuál es el sueldo mensual que recibe ?
a) $3500.00
b) $6000.00
c) $4500.00
d) $5000.00
e) $4000.00

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?