Pic included if triangle abc is congruent to triangle def, which statement is not true?

(options in pic)

2x + 1 < 5 solve the following inequality. then place the correct number in the box provided.

Fredrick designed an experiment in which he spun a spinner 20 times and recorded the results of each spin

He mass of a single atom of carbon can be found by dividing the atomic mass (12.01 g) by 6.022 x 10^23. which is the mass of a single carbon atom, correctly written in scientific notation with the correct number of significant figures?