Answer:
Step-by-step explanation:
11 t= -5 17 r = 27
12 n= -1 18 k = -20
13 m=-5
14 x= - 11
15 y = 70
16 f = - 70
C. m ≥ 9
7m -2 ≥ 61
7m ≥ 61+2
7m ≥ 63
m ≥ 63/7
m ≥ 9