What are the domain and range of the function f(x)=x^4-2x^2-4?

Find three consecutive numbers such that the sum of one-fourth the first and one-fifth the second is five less than one-seventh the third

Write a fraction less than 1, which has a denominator of 6 and is greater than 3/4 plz answer !

Glenda makes an online purchase for picture frames for $12.95 each and formats of $5.89 each the site says it taxes paid by the customer or 6.5% of the total purchase price shipping charges are based on the