In ΔCDE, \text{m}\angle C = (5x+18)^{\circ}m∠C=(5x+18) ∘
, \text{m}\angle D = (3x+2)^{\circ}m∠D=(3x+2)
∘
, and \text{m}\angle E = (x+16)^{\circ}m∠E=(x+16)
∘
. Find \text{m}\angle D. m∠D.

What are “like terms”? why can we only add like terms?

Tom wants to order tickets online so that he and three of his friends can go to a water park the cost of the tickets is 16.00 per person there is also a 2.50 one-time service fee for ordering tickets online write an expression in term of n that represents the cost for n ordering tickets online

What is the next step in the given proof? choose the most logical approach. a. statement: m 1 + m 2 + 2(m 3) = 180° reason: angle addition b. statement: m 1 + m 3 = m 2 + m 3 reason: transitive property of equality c. statement: m 1 = m 2 reason: subtraction property of equality d. statement: m 1 + m 2 = m 2 + m 3 reason: substitution property of equality e. statement: 2(m 1) = m 2 + m 3 reason: substitution property of equality