Answer:
D. 80 ft
substitute known values into the equation for area
Assuming you are asking how many weeks, than the answer would be 17-32, because at 16 weeks the growth would be 4 cm, totaling at 11, but you need more than 11cm, and at 32 weeks it's at 15 cm.
হ্যালো অ্যাঞ্জেলা এবং তারপরে যখন আমি আমার ট্রিপ থেকে get এ ফিরে আসি তখন আমরা এটি সম্পর্কে কথা বলতে পারি
6 feet * 7 feet = 42 feet²
18 feet * 21 feet = 378 feet²
42 feet² was painted for $52
1 feet² will be painted for $52/42
378 feet² will then be painted for: ($52/42) * 378
= $468
Hence 18 feet by 21 feet will be painted for $468
Hope this helps.