Answer:
B- x= 10
Step-by-step explanation:
40x=400 -> 40 x 10= 400
x + 9 = 32
answer for x is 32 - 9 = 23
Factors of 539:1, 7, 11, 49, 77, 539Factors of 1540:1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540
Common Factors: 1, 7, 11, 77GCF (greatest common factor) = 77
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