Find the scale factor and ratio of perimeters for a pair of similar octagons with areas 16 ft' and 49 ft The scale factor is (Simplify your answer.) The ratio of perimeters is . (Simplify your answer.) Enter your answer in each of the answer boxes.​

Evaluate the discriminant of each equation. tell how many solutions each equation has and whether the solutions are real or imaginary. 4x^2 + 20x + 25 = 0

Can someone me with #s 8, 9, and 11. with just one of the three also works. prove using only trig identities.

You can ride your bike around your block 6 times and the whole neighborhood 5 times in 16 minutes. you can ride your bike around your block 3 times and the whole neighborhood 10 times in 23 minutes. how long does it take you to ride around the neighborhood?