Answer:
Step-by-step explanation:
Subtract the discount from 100 to get the percentage of the original price.
Multiply the final price by 100.
Divide by the percentage in Step One
The answer is 6x^2+11x-35
6
sorry it's late but hopefully it can help someone else
The standard deviation is the square root of the variance
so if the variance is 256, then the standard deviation is : sqrt 256 = 16 <==
Result, Rachel can be certain that the temperature is suitable for her cake.