A baseball card was worth $120. Each year for x years, the card’s value, y, in dollars, decreased by $10. The owner sold the card after 5 years. The value of the card can be modeled using a linear function. What is the domain of the function?

To the nearest percent, by what percentage was its price marked down? ... A disease epidemic strikes this town wiping 9,000 people out. ... A farmer began the growing season with 120 acres of wheat. ... By what percent has the snow leopard population declined since 1983?

Step-by-step explanation:

-1^2=1

Step-by-step explanation:

-1^2 is 1 but if you try with a calculator and you write -1^2 it's -1 because the calculator consider just the 1. If you put the parentheses it is (-1)^2=1