The two-way relative frequency table shows the relative frequencies of 9- and 10-year-olds who prefer superhero a or superhero b. what percent of 9-year-olds prefer superhero a? superhero a superhero b9-year-olds 0.375 a 0.625 b10-year-olds 0.667 a 0.333 b

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?