What is the mean of the following set of numbers? 13, 15, 11, 30, 20, 24, 13 a. 15 b. 13 c. 19 d. 18

Afruit stand has to decide what to charge for their produce. they need $10 for 4 apples and 4 oranges. they also need $15 for 6 apples and 6 oranges. we put this information into a system of linear equations. can we find a unique price for an apple and an orange?

Witch represents the inverse of the function f(x)=1/4x-12

Two variables, x and y, vary inversely, and x=12 when y=4. what is the value of y when x=3?