Answer two questions about Systems AAA and BBB: System AAA \text{\quad}start text, end text System BBB \begin{cases}x+3y=-92x+y=4\end{case s} ⎩ ⎪ ⎪ ⎨ ⎪ ⎪ ⎧ x+3y=−9 2x+y=4 \begin{cases}3x+4y=-92x+y=4\end{cas es} ⎩ ⎪ ⎪ ⎨ ⎪ ⎪ ⎧ 3x+4y=−9 2x+y=4 1) How can we get System BBB from System AAA?

Write a function for a rotation 90 degrees counter clockwise about the origin, point 0

The frequency table shows the results of a survey comparing the number of beach towels sold for full price and at a discount during each of the three summer months. the store owner converts the frequency table to a conditional relative frequency table by row. which value should he use for x? round to the nearest hundredth. 0.89 0.90 0.92 0.96

Use complete sentences to differentiate between a regular tessellation, and a pure tessellation. be sure to include specific types of polygons in your explanation.