Answer:C
Explanation:
A=1/2(4)(9)+(9)(9)
A=18+81
A=99
A=(9)(9)+0.5(9)(4)
A=81+18
A=1/2 (4)(9)+13(9)
A=18+117
A=135
A= 13(9)- (4)(9)/2
A=117-18
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