Question

which type of fruit is more expensive per pound? how do you know?
(table: weight of apples (lb) | cost
5 | $15
6 | $18
7 | $21
8 | $24
graph: y-axis: cost ($), x-axis: weight of pears (lb), line graph from (0,0) to a point)

Explanation:

Step1: Calculate cost per pound for fruit A

From the table, for fruit A: weight = 5 lb, cost = $15. Cost per pound = $\frac{15}{5}$ = $3/lb.

Step2: Calculate cost per pound for fruit B

From the table, for fruit B: weight = 6 lb, cost = $18. Cost per pound = $\frac{18}{6}$ = $3/lb.

Step3: Compare costs per pound

Both fruits have a cost of $3 per pound.

Answer:

Neither type of fruit is more expensive per pound; both cost $3 per pound.