Answer:
134 hamburgers sold on Sunday
Step-by-step explanation:
x+3x=536
4x=536
4x/4=x, 536/4=134
x=134
23,457 - 19,436 = 4,021
23,457 + 4,021 = 27,478
total income next year - 27,478
<span>about 100.70 million.</span>
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