The total cost of water heater not including a 7% sales tax is 490.00$ what is the cost of the water heater with the tax

7% = 0.07 -> Percent to decimal

$490.00 (0.07) = 34.3  ->7% of total price

$490.00 + $34.3 = $ 524.3  -> Added tax to total price

Your final answer is $524.30.

Hope that helps!

b: |12 – x| ≤ 0.25

step-by-step explanation:      

let x be the possible lengths in inches, of the ribbons jaime cut.

we have been given that jaime is cutting strips of ribbon for a project. he tries to cut each piece to be 12 inches long, but sometimes he cuts it too long or too short by as much as 0.25 inch.  

we can represent this information in an inequality as:

by the definition of absolute value function we will get,

upon combining our inequalities we will get,

therefore, the inequality   describes all the possible lengths (x), in inches, of the ribbons jaime cut.

step-by-step explanation:

i am not sure :

step-by-step explanation: