Sarah has 52 balloons;13 of the balloons are red, and 4 of the balloons have polka dots. Just 1 of the red balloons has polka dots. What is the probability of randomly choosing a balloon that is either red or has polka dots

17/52

Step-by-step explanation:

red: 13/52

polka dots: 4/52

13 + 4 = 17 = 17/52

(p.s the "Just 1 of the red balloons has polka dots." was kinda to throw u off it doesn't actually matter)

i dont know

step-by-step explanation:

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.