Ydney exercises 4 times a week. she runs 3 12 miles each morning and bikes in the evening. if she exercises a total of 60 miles for the week, how many miles does she bike per evening?

sample answer: you can determine whether each element of the domain is paired with exactly one element of the range. for example, if given a graph, you could use the vertical line test; if a vertical line intersects the graph more than once, then the relation that the graph represents is not a function.

using pemdas, (order of operations) you'll see the answer is 24.

i believe a. 12x≥120 is the answer