13. The Walnut Cove Club sells hot dogs and drinks from a concession stand at the annual \( 4^{\text {th }} \) of July parade. Carl bought 5 hot dogs and 4 drinks and paid \( \$ 21.40 \). Susan purchased 4 hot dogs and 2 drinks and was charged \( \$ 14.60 \). What is the cost of 1 hot dog? \( \$ 2.60 \) for a hot dog \( \$ 2.80 \) for a hot dog \( \$ 3.00 \) for a hot dog \( \$ 2.10 \) for a hot dog

3 Реши задачу. Один гончар заработал 1300 тенге, а другой, изготавливая такие же изделия, - 1950 тенге. Сколько изделий изготовил каждый из них, если первый изготовил на 2 изделия меньше, чем второй?

The total of \( x \) and 78 is 24

Factor the polynomial function \( f(x)=4 x^{3}+20 x^{2}+29 x+10 \) Note: Write \( \left(x-\frac{a}{b}\right) \) as \( (b x-a) \) The zeros are \( f(x)= \)

1. Given that \( f(x)=x^{2}, g(x)=\frac{2}{x} \) and \( h(x)=2 x \), Find the following: \( \begin{array}{ll}\text { (a) } g(h(x)) & \text { (b) } f^{-1}(h(x)) \\ \text { (c) } h(f(-1)) & \text { (d) } g^{-1}(f(-1)) \\ \text { (e) } g(h(f(x))) & \text { (f) } h^{-1}(f(g(x)))\end{array} \)

\( \left. \begin{array} { c } { x + y + z = 6 } \\ { \left. \begin{array} { c } { 3 x - 2 y + 6 z = 11 } \\ { x + z = 7 } \end{array} \right. } \end{array} \right. \Rightarrow \left[ \begin{array} { c c c c } { 1 } & { 1 } & { 1 } & { 6 } \\ { 3 } & { - 2 } & { 6 } & { 1 } \\ { 1 } & { 0 } & { 1 } & { 7 } \end{array} \right] \)