Answer:
If the gift card is $30 the remaining change is 3 dollars
Answer:

Step-by-step explanation:
Answer:
$157.80
Step-by-step explanation:
$789 / 5 bikes
Answer:
mmm, well, not much we can do per se, you'd need to use a calculator.
I'd like to point out you'd need a calculator that has regression features, namely something like a TI83 or TI83+ or higher.
That said, you can find online calculators with "quadratic regression" features, which is what this, all you do is enter the value pairs in it, to get the equation.
Step-by-step explanation:
The answer you are looking for is
5 - 37 i
Hope I helped!!