Answer:
To calculate George's new weekly pay rate after a 20% raise, we can use the following formula:
New weekly pay rate = Old weekly pay rate + (Old weekly pay rate x Percent raise)
Or, mathematically:
New weekly pay rate = 455 + (455 x 0.20)
Simplifying the calculation:
New weekly pay rate = 455 + 91
New weekly pay rate = 546
Therefore, George's new weekly pay rate is $546.
Out of the given options, the calculations that will result in George's new weekly pay rate are:
multiply $455 by 1.20
solve for x: x/455 = 120/100 (this is equivalent to multiplying $455 by 1.20)