Step-by-step explanation:
8x-10=3x+90
=5x=100
=x=20
therefore
B=3(20)+90
150°
The second, third and fourth
I think the answer is 7 tens. I hope this helps, but I am pretty sure it is wrong maybe
'of' can be translated as multiply so
3/5 times 45/1=135/5=27
the number is 27