This. Is. An. Emergency. Brainliest. Five stars. Thanks. PLEASE. 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.

1. Write an equation that shows the cost of a pack of test tubes, , in terms of the cost of a set of beakers, .
10t=b-4

2. The school office receives a bill for the supplies in the amount of $348. Write an equation with and that describes this situation.
12b+8t = $348

3. Since is in terms of from the first equation, this expression can be substituted into the second equation where appears. Write an equation that shows this substitution.