Estimate the sale price of a $349.99 40 inch plasma tv that is 20% off. write one or two sentence to explain your estimation strategy.

If f(x)=x^3 and g(x)=2x+7 when g(x)=-5

Eric has challenged himself to walk 24,000 steps in 4 days. if eric walks the same number of steps each day, which function represents the number of steps eric still needs to walk to reach his goal with respect to the number of days since he started his challenge? a. y = 8,000x − 24,000 b. y = -8,000x + 24,000 c. y = 6,000x − 24,000 d. y = -6,000x + 24,000

Express in the simplest form: (x^2+9x+14/x^2-49) / (3x+6/x^2+x-56)