The number of books in a warehouse can be found using the expression \( 4,000+100 b d \), where \( b \) is the number of boxes of books the warehouse receivesleach day over a period of \( d \) days. What is the best interpretation of the number 100 in the expression? A) The number of books in each box B) The number of books received each day C) The number of boxes received that contain books D) The number of days it takes to receive each box

в) \( \left\{\begin{array}{l}4 x-7 y=30 \\ 4 x-5 y=90\end{array}\right. \)

25. Expresa en la forma radical y halla el resultado atencia con exponente fraccionario \( \begin{array}{lll}\text { a) } 64^{\frac{1}{2}} & \text { b) }(-125)^{-\frac{1}{3}} & \text { c) }\left(256 x^{3} y^{2}\right)^{\frac{4}{7}}\end{array} \)

Use the power of a power property to simplify: \( (2y^{5})^{2} \)

47. ( \( 99-4-32) y=\pi s i n \pi x+2 x-4 \) funksiyaning \( x= \) 1 bo'ganda qiymati 3 ga teng bo'ladigan bosh lang ich funksiyasi \( x \) ming qanday qiymatida nolg aylanadi? \( \begin{array}{lllll}\text { A) } 0 & \text { B) } 1 & \text { C) } 0,5 & \text { D) } 2 & \text { E) }-2\end{array} \)

742. Нишон дихед, ки \( 2 a-b-(2 b-a)-3(a-b) \)