Time Warner Cable has a $50 setup fee and costs $30 per month for internet. Verizon Fios has no setup fee and costs $40 per month. In how many months will the cost be the same for both services? PLEASE HELP ME!

3x + 4y = 5 x- 3y = -7 solve by substitution

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

Write the contrapositive of the conditional statement. determine whether the contrapositive is true or false. if it is false, find a counterexample. a converse statement is formed by exchanging the hypothesis and conclusion of the conditional. a) a non-converse statement is not formed by exchanging the hypothesis and conclusion of the conditional. true b) a statement not formed by exchanging the hypothesis and conclusion of the conditional is a converse statement. false; an inverse statement is not formed by exchanging the hypothesis and conclusion of the conditional. c) a non-converse statement is formed by exchanging the hypothesis and conclusion of the conditional. false; an inverse statement is formed by negating both the hypothesis and conclusion of the conditional. d) a statement not formed by exchanging the hypothesis and conclusion of the conditional is not a converse statement. true