A. 1.9 is an irrational number
Answer:
Step-by-step explanation:
try the numbers -3 -2 1 and 3
The answers 2
because you replace n with 7
B is 2 and C is 9. AB is 7, AC is 14 and AD is 21. The kine AD has been split into 3 equal sections which are 7 each
