Suppose the diameter of a circle is \color{green}{4}4start color green, 4, end color green units. What is its circumference? units

[15 points, algebra 2]simplify the complex fraction and find the restrictions.

What is the t intercept of the line given by the equation below y= -10x + 14

The perimeter of ? cde is 55 cm. a rhombus dmfn is inscribed in this triangle so that vertices m, f, and n lie on the sides cd , ce , and de respectively. find cd and de if cf=8 cm and ef=12 cm. the answer is not cd=20 and de=15. i have tried that one, it does not work.