Mark want's to buy a new smart phone. He finds four stores selling the smart phone he wants. The deals at the store are shown. Store A: 20% off a $1000 price
Store B: 25% off of an $850 price
Store C: $900 price with a $150 rebate
Store D: $800 price with a coupon for $200 off
At which store should Mark buy his New Smart Phone?

C

Step-by-step explanation:

C I get the answer brainlist pl

54 kilometers per hour

step-by-step explanation:

according to rules:

1 km = 1000 meter

which means that 1 meter = 1/1000 km

1 hour = 3600 second [ as 1 hour = 60 min = 60 *60 seconds ]

which means that 1 second = 1/3600 hour

therefore, 1 kilometer/hour =

thus to convert 15 meter per second to kilometer per hour, we multiply 15 to 3.6 kilometer/hour.

15 meter/second=   which is the required answer.

- (2, -7)

- lines r and s and lines t and u must be parallel