Amanda, Bobby, and Clark went shopping for school supplies. Amanda bought one pen and one notebook and spend $5.75.
Bobby bought one pen and one eraser and spent $3.50. Clark
bought one notebook and one eraser and spent $4.75. How much
does each item cost?

Pen: $2.25

Notebook: $3.50

Eraser: $1.25

Step-by-step explanation:

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30 miles

step-by-step explanation:

we know that 60 seconds equals 1 minute and 60 minutes 1 hour

44 ft       60 sec     60 min     158400   ft

  *   *   =

1 sec       1 min       1 hour         hour

we know that there are 5280 ft per mile

158400   ft       1 mile         30 miles

  *   =

1   hour               5280 ft     1 hour

so in 1 hour   it can travel 30 miles