¿Cuál es la asignatura que más requiere atención? * 2 puntos

a) Historia.

b) Ciencias Naturales.

c) Cívica y Ética.

d) Geografía.

i think the amount would be $140.62

step-by-step explanation:

step 1: solve one of the equations for one of the variables. let's solve the first equation for y:

step 2: substitute that equation into the other equation, and solve for x.

step 3: substitute x = 4 x = 4 x=4 into one of the original equations, and solve for y.

60°

step-by-step explanation:

the measure angle of c in an isosceles triangle abc is 60° because in isosceles triangle,the measures of all the angles is 60°.

i dont know

step-by-step explanation:

umm. i dont know