Need help.. too hard:(

Answer:
Step-by-step explanation:
BODMAS used.
[(3+2)*10]÷5*2=[5*10]÷5*2 (inner parenthesis)
=50÷5*2 [next parenthesis]
=10*2 {division}
=20 {multiplication}
2)
2)[tex](\frac{2[5+7]}{3*2})+6*8=(\frac{2*12}{3*2})+6*8\\\\=(\frac{24}{6})+6*8\\\\=4+6*8\\\\=4+48\\\\=52[/tex]
3)15 - 8 + 18 ÷ 3*2 = 15 - 8 + 6*2
=15 - 8 + 12
= 7 +12
= 19