14 Kumar had as many stickers as Moiling at first. After Moiling gave away 180 of her stickers, Kumer had 5 times as many stickers as Meiling. (a) How many stickers did Kumar have?

8.12 станок 8 кунде жумыстын 0,4 6өлігін бітірді. Қапған жумысты терт кунде бітіру ушін жумысқа тағы неше станок қосыпу қажет? (A) 16 (B) 18 (c) 24 (D) 22

Use the change-of-base formula and a calculator to evaluate the logarithm. Round your answer to three decimal places. \( \log _{1 / 2} 6 \) \( \log _{1 / 2} 6 \approx \square \) (Do not round until the final answer. Then round to three decimal places as needed.)

Perform the following arithmetic operations on the given complex numbers. a. Add. \( (1+5 i)+(-1+2 i) \) b. Subtract. \( (1+5 i)-(-1+2 i) \) c. Multiply. \( (1+5 i)(-1+2 i) \) d. Divide. \( \frac{1+5 i}{-1+2 i} \) e. Evaluate. \( i^{71} \). ( \( 1+5 \).

\( \begin{array}{ll}\text { a. } 3 x^{2} \cdot\left(-5 x^{3}\right) & \text { B. }-2 x^{3} \cdot\left(-5 x^{6}\right) \\ \text { 8. }-3 x y^{3} \cdot\left(-2 x^{4} y\right) & \text { ع. } \frac{2}{3} x^{5} \cdot\left(-5 x^{4}\right)\end{array} \)

\( a ( x - 1 ) ^ { 2 } - ( a - 1 ) ( x + 1 ) 2 \geq ( a - 1 ) ^ { 2 } - ( a + 2 ) ^ { 2 } + x ^ { 2 } \)