One week, the music store sold 2 trumpets, 3 clarinets, and 5 violins for $1,240. the next week, they sold 3 trumpets, 1 clarinet, and 4 violins for $1,027. the following week, they sold 5 trumpets, 7 clarinets, and 2 violins for $2,091. find the cost of a trumpet, clarinet, and violin.

54 km / hours

step-by-step explanation:

we need to convert seconds to hours

60 seconds = 1 minutes

60 minutes = 1hour

15 m         60 second   60 minutes

  * *         = 54000 meters/ hour

second     1 minute             1 hour

now we need to convert meters to km

1000 m = 1 km

54000 m       1 km

*   = 54 km / hours

hour               1000m

6mm^3 or .6cm^3

      216

      /   \

  36     6

  /   \     /

6     6   6

factor trees are nice.

what