For question 8 , I’m not sure which one goes with which , plz help

Brainlest answer can you find the area and circumference of a circle given the radius or diameter? if its yes or no explain why

Find the nonpermissible replacement for binthis expression.b2/5b +5

Which of these side lengths could form a triangle a) 2 cm , 2 cm , 4 cm b) 3 cm , 5 cm , 10 cm c) 3 cm , 4 cm , 5 cm d) 4 cm , 8 cm , 15 cm