7. let a be the set of students at gsu. define the relation s as: x s y co x is the same age prove that s is an equivalence relation.

28

step-by-step explanation:

8+8+6+6

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: the answer is ann

the answer is 13

step-by-step explanation:

5*5=25

12*12=144

25+144=169

169^2=13