Graph the inequality in the coordinate plane. \[ y>4 \]

1. Calcula dos números cuya suma sea 100 y de forma que su producto sea máximo.

Jiahao had 22 fewer stickers than Raju at first Then, Jiahao gave Raju 35 stickers. Now, Raju has 5 times as many stickers as Jial How many stickers did Jiahao have at first?

\( \frac { a } { x + a } + \frac { b } { x - b } = \frac { a + b } { x - c } \)

Determine the solution set of the following. \( \begin{array}{ll}\text { 1. }-3 x+4=-1 & \text { 6. } \frac{13+2 x}{4 x+1}=\frac{3}{4} \\ \begin{array}{ll}\text { 2. } 4 x-3=-5 x+6 & \text { 7. } 8-\frac{5}{x}=2+\frac{3}{x} \\ \text { 3. } 4(2 y+5)=3(5 y-2) & \text { 8. }(3 x-2)^{2}=(x-5)(9 x+4) \\ \text { 4. } 6(2 y+3)-3(y-5)=0 & \text { 9. }(5 x-7)(2 x+1)-10 x(x-4)=0 \\ \text { 5. } \frac{3+5 x}{5}=\frac{4-x}{7} & \text { 10. } \frac{-5}{3 x-9}+\frac{4}{x-3}=\frac{5}{6}\end{array}\end{array} \$ \begin{array}{l}\end{array} \)

8. Info \( 1: 7 x+2,5 x+12,2 x-1 \) is an arithmetic series \( \frac{10}{10}(\sqrt{3} \) Info \( 2: \sum_{k=1}^{n}(20-4 k)=-20 \), where, \( n \) is natural numbe a. Find the value of \( x \& \) determine the series from info 1 . b. Find the value of \( n \) from info 2 .