Juan va a comprar cada 6 dias Maria cada 4 dias y Lucas cada 8 dias si hoy han coincidido cunado volveran a coincidir

Can someone check my answer? you : )

Aregular hexagon rotates counterclockwise about its center. it turns through angles greater than 0° and less than or equal to 360°. at how many different angles will the hexagon map onto itself?

Olga used 100 ounces of flour to make 225 muffins. how many ounces of flour will be used to make 300 muffins?