PLEASE HELP!! Determine if the given information would form a unique triangle, many different triangles, or no triangles. Explain your reasoning..

1) 18 in, 12 in, and 7 in

2) 14 mm, and 12 mm

3) 4 in, 5 in, and 2 in

4) 4 ft, 16 ft, and 1 ft​

Jack has a piece of red ribbon that is two times as long as his piece of blue ribbon. he says that he can use two different equation to find out how long his piece of red ribbon is compared to his piece of blue ribbon is. is he correct? explain his reasoning

Find the constant of variation for the relation and use it to write an equation for the statement. then solve the equation.

Ellen makes and sells bookmarks. she graphs the number of bookmarks sold compared to the total money earned. why is the rate of change for the function graphed to the left?