A que epoca proviene la pintura de la monalisa y por que

Se cree que la "Mona Lisa" fue pintada en Florencia, Italia, entre 1503 y 1506.

Y la pintura debía ser un retrato de la esposa de Giocondo, Lisa del Giocondo, que la pareja tenía la intención de colgar en su nuevo hogar para celebrar el nacimiento de su nuevo hijo, Andrea. Leonardo comenzó su pintura en 1503 y continuó su trabajo durante tres años.

Explanation:

Espero que te ayudo ; )

the perimeter of a triangle is 69 cm. side a is 5 cm shorter than side b. side c is twice as long as side a. find the length of each side. i need to know how to do it in 2 equations.  

equations:

a = b-5

c = 2a

a + b + c = 69

while it was true that the cotton gin reduced the labor of removing seeds, it did not reduce the need for slaves to grow and pick the cotton.

explanation:

before eli whitney's invention of the cotton gin, picking and cleaning cotton was a slow, labor-intensive job. workers, usually slaves, had to pick the seeds from the cotton fibers by hand. this invention made it possible to grow large amounts of cotton on big farms and make money.