12. yusuf bought a dvd recorder for $280. now it is on sale
for $220. determine the percent of change in the price. round to the nearest whole percent if necessary
8. what number is 2% of 35?
9. 9 is 12% of which number?
13. determine the percent of change from 10 yards to 13
yards.

Do 12/14 and 8/10 have the same value? explain your answer.

Write a similarity statement for the similar triangles. afgh ~ a

Match the following reasons with the statements given to create the proof. 1. do = ob, ao = oc sas 2. doc = aob given 3. triangle cod congruent to triangle aob vertical angles are equal. 4. 1 = 2, ab = dc if two sides = and ||, then a parallelogram. 5. ab||dc if alternate interior angles =, then lines parallel. 6. abcd is a parallelogram cpcte