Answer:
tax: $18.9
total cost: $333.9
Step-by-step explanation:
$315 × 0.06 = 18.9
18.9 + 315 = 333.9
btw you can also do "315 × 1.06" to get the total cost without having to manually add the tax
B is the answer your welcome
-5/3, -0.1, 0.7, sqrt2, sqrt5
B. Just find the percentage to see if it is correct

It equals about .3356, but multiply it by 100 to get its percentage which is about 34%. So yes it is correct.
C.

Simplified would be a ratio of

So they would be incorrect
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