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**xsriel** 1. Angles A and B are supplementary. If the measure of angle A is 8 times angle B, what is the measure of angle A?

2. Starting at the town of Euler and traveling 40 miles to the town of Pythagoras, Rashid travels at the rate of 2 miles every 15 minutes. Returning from Pythagoras to Euler, he travels 2 miles every 3 minutes. What was Rashid's average speed, in miles per hour, for the entire trip? Express your answer as a mixed number.

3. The ratio of the length of the sides of square ABCD to the length of the sides of square PQRS is 3:1. If the area of ABCD is 9 square units, what is the length of side PS?