Respuesta :

jg71
15.
if <A = 84° then
[tex]4x + 18 = 42[/tex]
[tex]4x = 24[/tex]
[tex]x = 6[/tex]
if x = 6 then..
[tex]7x + 4 = 7(6) + 4[/tex]
[tex]m < r = 7(6) + 4[/tex]
[tex]m < r = 42 + 4[/tex]
[tex]m < r = 46[/tex]

I can't see enough of 16 to help on that one