Answer:
8. 18
9. 283
10. - 48
Step-by-step explanation:
PMDAS
8. 2 + (7 x 3) - 5
= 2 + (21) - 5
= 23 - 5
= 18
9. 7 + {2(12-5) +32} 18 / 3
= 7 + {2(7) +32} 18 / 3
= 7 + {14 +32} 18 / 3
= 7 + (46) 6
= 7 + 276
= 283
10. 42 - 4x3(2) + 2(5-2)(3)
= 42 - 4x3(2) + 2(27)
= 42 - 4x3(2) + 54
= 42 - 4x9 + 54
= 42 - 36 + 54
= 42 - 90
= - 48/48
Feel free to correct me:))
