Determine which kind of model best describes this data set.
{(-2,1),(-1, 3). (0,5),(1,7),(2,9)}

What can you determine about the solutions of this system

1. 2. ∠b and ∠y are right angles. 3.? 4.? which two statements are missing in steps 3 and 4? ∠x ≅ ∠c △abc ~ △zyx by the sas similarity theorem. ∠b ≅ ∠y △abc ~ △zyx by the sas similarity theorem. = 2 △abc ~ △zyx by the sss similarity theorem. = 2 △abc ~ △zyx by the sss similarity theorem.

Gabrielle's age is two times mikhail's age. the sum of their ages is 84. what is mikhail's age?