Andrew is 17 years old, which is 3 years more than twice as old as his sister. andrew's sister is a years old. which value of a makes the equation 17 = 2a + 3 true?

my answer is$ 12

step-by-step explanation:

because 15 -2=12

step-by-step explanation:

ca = ec

cpctc makes it so that corresponding parts of the triangle you proved to be equal are equal, the other options aren't part of the part of the triangles you proved to be equal.

step-by-step explanation:

at each of the parallel lines adjacent angles are supplementary. the angles have special names identifying their positions with respect to the parallel lines and transversal. they are corresponding angles, alternate interior angles, or alternate exterior angles. an angles is congruent to its matched angle.