The first number plus the third number is equal to the second number. the sum of the first number and the second number is six more than the third number. three times the first number minus two times the second number is equal to the third number. what is the sum of the three numbers?

The radius of a sphere is 3 inches. which represents the volume of the sphere?

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

If t17 = 3 (t5) in an arithmetic progression, find t1 in terms of d.