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Answer:
For 7a its C i think And for 7b is 3:2
Step-by-step explanation:
hope this helps
$75.14. formula as follows ($79.99 - (($79.99/100)x12)) + ((($79.99/100)x12)/100)*6.75)
I have included the answer and work in the picture attached below (the side length for the bottom leg is cut off, but it is 16 sqrt(2)):