Answer:
which language is this bro
(a+b)(a-b)
Step-by-step explanation:
30
3:7
30 students
3\10×30=9
7\10×30=21
9+21=30
4x+24/3=12
So 4x+8=12
-8 on both sides
4x=4
divide by 4
x=1
89m^2
9x5=45
(13-9)x11=44
45+44=89