Question

determine a razão da PA (-31, -26, -21)

Answer 1

r= a2-a1=
r= -26 -(-31)= 
r= 5

Answer 2

$Ol\acute{a},\;boa\;tarde!\\\\Raz\tilde{a}o:\\\\r=a_2-a_1\\r=-26-(-31)\\r=-26+31\\r=5\\\\Espero\;ter\;ajudado.\\Bons\;estudos!\;=)$