7. Find the mean for the given sample data. Unless indicated otherwise, round your answer to one more decimal place than is present in the original data values. Last year, 9 employees of an electronics company retired. Their ages at retirement are listed below.
51 61 62
54 68 58
60 57 54
Find the mean retirement age.
58.0 yr
57.7 yr
57.1 yr
58.3 yr

John bought 2 horses at rs 20000 each

Prove that (x-2)is factor of p (x)=2x³-3x²-17x+30

Acampus club held a bake sale as a fund raiser, selling coffee, muffins, and bacon and eggs sandwiches. the club members charged $1 for a cup of coffee, 3$ for a muffin , and $4 for a back. and egg sandwich. they sold a total of 55 items , easing $119. of the club members sold 5 more muffins than cups of coffee, how many bacon and egg sandwiches he’s did they sell