The City of Killeen utilities charges for water usage per gallon on a monthly basis as listed below. Up to 500 gallons ($0.15/gallon)

More than 500 gallons - 1000 gallons ($0.33/gallon)

How much will Mrs Lapid pay if she uses 795 gallons in a particular month?

$262.35

Step-by-step explanation:

From the above question we are given the cost for a given range of gallons

Mrs Lapis uses 795 gallons, hence this falls into the range of:

More than 500 gallons - 1000 gallons ($0.33/gallon)

Hence:

1 gallon = $0.33

795 gallons = $x

Cross Multiply

1 gallon × $x = $0.33 × 795 gallons

$x = 795 × $0.33

x =$ 262.35

Therefore, Mrs Lapis would pay $262.35 every month

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