A coat is marked down from $25 to 19. What is the percent of change

What are the domain and range of the function? f(x) = -4 (sqrt)x

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?

Factor the polynomial expression x6 – x3 – 20