. In 1970 the U. S. population was 205,052,000, the birth rate was 18.4 per 1000 and the death rate was 9.5 per 1000. a. Find the predicted population 21 years later, in 1991.

What is the square root of 45? (step by step working plz)

Use the elimination method to solve the systems of equations.choose the correct ordered pair. 7x+4y=39

Given: lines a and b are parallel and line c is a transversal. prove: 2 is supplementary to 8 what is the missing reason in the proof? statement reason 1. a || b, is a transv 1. given 2. ∠6 ≅ ∠2 2. ? 3. m∠6 = m∠2 3. def. of congruent 4. ∠6 is supp. to ∠8 4. def. of linear pair 5. ∠2 is supp. to ∠8 5. congruent supplements theorem corresponding angles theorem alternate interior angles theorem vertical angles theorem alternate exterior angles theorem