Verified Answer :

  1. 10% of 40
    = 40 × 0.10 = 4

    14. 12% of 100
    = 100 × .12 = 12

    15. 99% of 60
    = 60 × .99 = 59.4

    16. 100% of 81
    = 81 × 1 = 81

    17. 45% of 360
    = 360 × .45 = 162

    18. 55% of 1,024
    = 1024 × .55 = 563.2

    19. 45 + n = 97
    n = 97 - 45 = 52

    20. n - 18 = 100
    n = 100 + 18 = 118

    21. n - 72 = 91
    n = 91 + 72 = 163

    22. n + 23 = 55
    n = 55 - 23 = 32

    23. 5 × t = 105
    t = 105 ÷ 5 = 21

    24. b ÷ 13 = 8
    b = 8 × 13 = 104

    25. k × 18 = 90
    k = 90 ÷ 18 = 5

    26. d ÷ 7 = 8
    d = 8 × 7 = 56