HELP!!! Geometry ANSWER IF YOU ACTUALLY UNDERSTAND WILL GIVE BRAINLIST IS CORRECT

Which statement below has a false converse?
A. If two angles are a linear pair, then they are supplementary
B. If a triangle has 3 congruent sides then it is equilateral.
C. If two rays share an common endpoint and form a line, then they are opposite rays.

Customers at an ice-cream shop took a survey .the results showed that 144 customers rated the shop as being "very satisfactory ."this number represented 45%of the total nunber of customers who took the survey

What is not true about kl and mn? what is mn? (show )

The edge of a cube was found to be 30 cm with a possible error in measurement of 0.4 cm. use differentials to estimate the maximum possible error, relative error, and percentage error in computing the volume of the cube and the surface area of the cube. (round your answers to four decimal places.) (a) the volume of the cube maximum possible error cm3 relative error percentage error % (b) the surface area of the cube maximum possible error cm2 relative error percentage error %