Sarah is researching the connection between the time students spend watching television and their performance in school. her studies indicate that there is an inverse relationship between tv time and gpa, and that a student who watched 15 hours of tv per week can be expected to have a gpa of 3.5. find k, the constant of variation, for this relationship.

The cost of using a service is $0.25 per min. what equation correctly represents the total cost c, in dollars, for d days of use?

Paul’s car is 18 feet long. he is making a model of his car that is 1/6 the actual size. what is the length of the model?

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