Angle c and angle d are vertical angles with m angle c = -3x + 58 and m angle d = x - 2

Step-by-step explanation:

Vertical angles means angles of the same measure.

m∠c = m∠d

-3x + 58 = x - 2      {subtract x and 58 from both sides}

-4x = -60             {divide both sides by (-4)}

 x = 15

48 / 6 = x

in this case, x will equal the amount of money in each card!

x therefore will be 8.

trent had $8 in each birthday card.

first, you divide the triangle in two, tô form a retangle triangle. after, using pythagoream theorem:

18^2 = 14^2 + (x/2)^2

(x^2/4) + 196 = 324

x^2/4 = 324 - 196

x^2/4 = 128

x^2 = 512

x = √512

x = √2^9

x = 16√2 cm

i hope i you.