It took Todd 11 hours to travel over pack ice from one town in the Arctic to another town 330 miles away. During the return journey, it took him 15 hours. Assume the pack ice was drifting at a constant rate, and that Todd's snowmobile was traveling at a constant speed relative to the pack ice. What was the speed of Toddls snowmobile?

If the ratio botween the measures of two supplementary angles is \( 3: 5 \) , find the degree measure of ench one.

\( \left. \begin{array} { c } { 72 x ^ { 2 } + 160 x \quad t ^ { \prime } ( x ) = 4 x ^ { 2 } \cdot 0 + \ln 3 \cdot 8 x = 8 x : \ln 5 } \\ { \frac { ( 4 x ^ { 2 } \cdot \ln 5 ) ( 72 x ^ { 2 } + 160 x ) - ( 24 x ^ { 3 } + 80 x ^ { 2 } ) \cdot ( 8 x \cdot \ln 5 ) } { [ 4 x ^ { 2 } \cdot \ln 5 ] ^ { 2 } } } \end{array} \right. \)

Escribe ejemplos (en tu carpeta) que estimes en: \[ 1 \mathrm{dam}-1 \mathrm{hm}-1 \mathrm{~km} \]

For an ordered pair \( (x, y) \) in a relation, the \( x \) element represents the a.) range b.) function c.) domain d.) output

b) When a number is decreased by \( 7 \% \), the result is 180 . Find the number.