Answer:
building one is 292 years old and building two is 879 years old
Step-by-step explanation:
292x3= 879
C is the answer
a(x)= 3mx+4
have a lovely day <3
i think its
D
40, 41, 42
x +x+1+x+2=123
3x+3=123
3x=123-3
3x=120
x=120:3
x=40(the first number
40+1=41 (the second number
40+2=42 (the third number