Given the rule:

Complete the table for the function rule for the following input values:
Here is an input-output rule:

Complete the table for the input-output rule:
Andre’s school orders some new supplies for the chemistry lab. The online store shows a pack of 10 test tubes costs $4 less than a set of nested beakers. In order to fully equip the lab, the school orders 12 sets of beakers and 8 packs of test tubes.
Write an equation that shows the cost of a pack of test tubes,
The school office receives a bill for the supplies in the amount of $348. Write an equation with
Since
Solve the equation for
How much did the school pay for a set of beakers? For a pack of test tubes?
Solve:

For what value of