The base and the height of a triangle are multiplied by 54. Which of the following describes the effect of this change on the perimeter?

How far is x from 5 on a number line?

Which expression is equivalent to 2x^2+7x+4?

In two or more complete sentences, determine the appropriate model for the given data and explain how you made your decision. (1,-1), (2,0.5), (5,1.5), (8,2)