Question

lily is using seashells to make necklaces.Each necklace has 7 shells.Make an input/output table that shows the number of shells used for 10,15,and 25 necklaces. Write an algebraic expression that explains the relationship between the input output values.

Answer 1

Algebraic expression: y=7x

Table:

X | Y
10 | 70
15 | 105
25 | 175

Answer 2

$\left[\begin{array}{ccc}10&70\\15&105\\25&175\end{array}\right]$