10% tax on an item that costs $30 whats the tax?

assuming you mean addition: addition and subtraction are reverse operations.

step-by-step explanation:

alright well the answers to your question is

2xy/9 hope this have a nice day : )

step-by-step explanation:

irrational, then, just means all the numbers that aren't rational. every integer is a rational number, since each integer n can be written in the form n/1. however, numbers like 1/2, 45454737/2424242, and -3/7 are also rational, since they are fractions whose numerator and denominator are integers.

step-by-step explanation:

answer:

c) the x-coordinate of the center of the circle increases by 3