Un artista de un cubo mide 5 pulgadas de largo¿cúal es la área de la superficie del cubo en pulgadas cuadradas?
a .25
b.100
c.125
d. 150

Solve for x and y: 217x + 131y = 913; 131x + 217y = 827

How many sides does a regular polygon have if each exterior angle measure is 45 degrees explain your answer, i really don't understand this.

Aaron invested a total of $4,100, some in an account earning 8% simple interest, and the rest in an account earning 5% simple interest. how much did he invest in each account if after one year he earned $211 in interest? select one: a. $200 at 8%, $3,900 at 5% b. $3,200 at 8%, $900 at 5% c. $900 at 8%, $3,200 at 5% d. $3,900 at 8%, $200 at 5%