Vance is doing an experiment breeding fruit flies for his biology class. At 1 pm he counts 100 fruit flies in the box. At 4 pm there are 372 flies in the
box. Calculate the rate of change *
90.67
3/272
-90.67
-3/272

Apublic library wants to place 4 magazines and 9 books on each display shelf. the expressions 4s +9s represents the total number of items that will be displayed on s shelves. simplify this expression

Marco has $38.43 dollars in his checking account. his checking account is linked to his amazon music account so he can buy music. the songs he purchases cost $1.29. part 1: write an expression to describe the amount of money in his checking account in relationship to the number of songs he purchases. part 2: describe what the variable represents in this situation.

Solve the inequality and graph 6j - 7 < 5