Prehistoric cave paintings were discovered in a cave in france. the paint contained
23% of the original carbon-14. the half-life of carbon-14 is 5730 years. estimate the age of the paintings

With these: 18/36 = 1/? missing number change 1 5/8 to improper fraction. change 19/5 to a mixed number.

Plzzz answer both questions and i will give you 100 points

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