Estimate the sum. use benchmarks with decimal parts of 0, 0.25, 0.50, or 0.75.
2.52+4.03
a. 6.50
b. 6.75
c. 7

y=3n + 1

step-by-step explanation:

this is wrong because it says the second number is one less and i added one instead

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.

answer:   y=2x-3

step-by-step explanation: