19. Graham's class raised \( \$ 200 \) in a coin drive for a school fundraiser. The total for the entire school campus was \( 4.8 \times 10^{3} \). How many times greater was the total amount raised by the school compared to Graham's class? Express your answer in scientific notation.

Gleviote \( 1 \frac{3}{4}+\frac{3}{6} \) by finding a common denominator. vive your ariswer as a mixed number in its simplest form. \( 1 \frac{3}{4}+\frac{3}{6}=\square \)

Valuate \( \sum_{k=1}^{8}(-1)^{k+1} 3 k \)

A car was valued at \( \$ 34,000 \) in the year 1990 . The value depreciated to \( \$ 11,000 \) by the year 2006 . A) What was the annual rate of change between 1990 and 2006 ?

19. Find all the possible values of the missing digit(s) represented by \( (*) \) a) \( 2 * 6,8 * 71,8 * 919 \) are divisible by 11 .

4. Bir takımın 36 maç oynadığı bir süper lig sezonunda galibiyete 3 puan, beraberliğe 1 puan, mağlubiyete ise puan verilmemektedir. Sezon boyunca 3 mağlubiyet alan bir takım 85 puanla şampiyon olduğuna göre, aldığı galibiyet sayısı kaçtır? \( \begin{array}{llll}\text { A) } 24 & \text { B) } 25 & \text { C) } 26 & \text { D) } 27\end{array} \) E) 28 \( l \)