The cost of 11 pounds of fertilizer is $33.77. what is the constant of proportionality that related the cost in dollars, y, to the number of pounds of fertilizer, x?

11:33.77

divide each by 11

1:3.07

The constant of proportionality is $3.07 (y) for 1 (x) pound of fertilizer

expression #3 is not equivalent. the others are.

answer: c

because if you look at the chart you can see a pattern and compare it to the question he simplify out your

but i think the formula is f(x)=6x