10 points math vocab 2 questions match the vocab with the definition 1. an expression that consists of numbers, operations, and sometimes grouping symbol. 2.  the symbol of a math operation.plus, minus, times, divided by, equals a. evaluate b. operator

Number 1: Evaluate (A)

Number 2: Operator (B)

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