Question

please help me with this answer

Answer 1

Answer:

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Answer 2

Answer:

Step-by-step explanation:

47) 116 - (-79) = 116 + 79= 195

48) 20/100 * x = 25

                   x = 25 * 100/20

                     x = 25 * 5 = 125

49) 2/1 - 1/7 = (LCM = 7)

      14/7 - 1/7 = 14/7 - 1/ 7 = 14/7 = 2

50) 2πr = 176cm

      2 * 22/7 * r = 176cm

      r = 176 * 7/ 2/22 = 88*7/22 = 4 * 7 = 28cm