Answer: A. 28

Explanation: The ratio is 2:3:4 so the sides are 14, 21 and 28. Multiplier is 7 for the ratio.

Answer: B 2a -8b

Explanation; simplify the expression and you get -3a-4b +5a -4b = 21 - 8b

Secure Information

Content will be erased after question is completed.

Enter the email address associated with your account, and we will email you a link to reset your password.

Forgot your password?

Sign Up