Answer:
A= 21
Step-by-step explanation:
a=19.5+1.5=21
21+2.9=23.9
2(21)-18.1
Lines AB and CD are congruent.
Answer:
yes yes yessssssssssssss
Step-by-step explanation:
Answer:
√218
Step-by-step explanation:
Distance-√(x2-x1)+(y2-y1)
Answer:
A
Step-by-step explanation:
5a+4=9a+3-4a
5a-9a+4a=3-4
a=-1