1. write a two-column proof.
given: triangle acd is isosceles; < 1 is congruent to < 3
prove: segment ab || segment cd

If 1/2+2/5s=s-3/4,what is the value of s? a. s=3/4 b. s=25/12 c. s=-25/12 d. s=-3/4

Two times a number plus three times another number equals 4. three times the first number plus four times the other number is 7. find the numbers

Jeremy wants to determine the number of solutions for the equation below without actually solving the equation. which method should jeremy use?