A triangle has side lengths (x-7), (3x^2-4x+1), and (-x^2+5) find the perimeter of the triangle written in standard form

Abacteria population is tripling every hour. by what factor does the population change in 1/2 hour? select all that apply

Afarmer has a large field that is x feet in length. he wants to fence in a rectangular section in the middle of the field , leaving a length of 100 feet of open field behind each end of the fenced rectangle.he also wants the width of the fenced-in space to be 100 feet less than its length. find the expressions to represent the length and width of the fenced section of the field

How many times larger is 6 × 10^12 than 2 × 10^7? a. 30,000 b. 3,000 c. 3,000,000 d. 300,000