Answer:
77%
Step-by-step explanation:
23 divided by 30 is 0.766666, which percent-wise is rounded to 77% :)
the first one
PRETTY SURE ITS D
![2(\sqrt[3]{16x^{3}y })+4(\sqrt[3]{54x^{6}y^{5} } )= 2(2x\sqrt[3]{2y })+4(3x^{2} y\sqrt[3]{2y^{2} } ) = 4x(\sqrt[3]{2y })+12x^{2} y(\sqrt[3]{2y^{2} } )](https://tex.z-dn.net/?f=2%28%5Csqrt%5B3%5D%7B16x%5E%7B3%7Dy%20%7D%29%2B4%28%5Csqrt%5B3%5D%7B54x%5E%7B6%7Dy%5E%7B5%7D%20%20%7D%20%29%3D%202%282x%5Csqrt%5B3%5D%7B2y%20%7D%29%2B4%283x%5E%7B2%7D%20y%5Csqrt%5B3%5D%7B2y%5E%7B2%7D%20%7D%20%29%20%3D%204x%28%5Csqrt%5B3%5D%7B2y%20%7D%29%2B12x%5E%7B2%7D%20y%28%5Csqrt%5B3%5D%7B2y%5E%7B2%7D%20%7D%20%29)
