AABC is an isosceles triangle, with ZA being the vertex angle. If mZC=68, what is mZA? (Type the number only.)

Elena and her husband marc both drive to work. elena's car has a current mileage (total distance driven) of 15,000 and she drives 23,000 miles more each year. marc's car has a current mileage of 46,000 and he drives 9,000 miles more each year. will the mileages for the two cars ever be equal? explain.

45% of the trees in a park are apple trees. there are 27 apple trees in the park. how many trees are in the park in all?

If p(a) = 0.70 and p(b) = 0.20, then a and b are independent events if