LINK=REPORT I need help with #1, #3, #5, #7, #9, and #11

#11 is :
Diameter =12 ft
Height=18 ft

(Please show your work)
I will give Brainliest

(6.03) what is the constant term in the expression 6x3y + 7x2 + 5x + 4? (input a numeric value only.) numerical answers expected! me pls! fast pls

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