HI i know i am a week late but i hope this helps in some way. :)
X = Mateo Trading cards
4x-7 = Camila Treading cards
(4x-7) +x>51
4x-7+x>51
5x-7>51
5x>51+7
5x>58
x>58/5
x>11.6 = 12
Mateo can have at least 12 trading cards
Answear:
G=T hope dissssssssss helps
Answer:
13 units
Step-by-step explanation:
Distance formula: 
Simply plug in your variables




d = 13
4,000×0.035×2=280
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