giving brainliest to whoever answers the best! ( i would appreciate an explanation of how you got the answer, not just ONLY the answer. <3 )

The sales tax rate is 7.25%. how much tax in dollars is added on an item that costs $56.00? a. $4.06 b. $7.25 c. $14.50 d. $60.06

If 3x+8=3x+8 is it one solution or no solution

To solve the system of equations below, pedro isolated the variable y in the first equation and then substituted it into the second equation. what was the resulting equation? { 5y=10x {x^2+y^2=36