Tammy decides to double the length of each side of her sister's sandbox, but not change its height. It takes 10 bags of sand to fill the old sandbox. How many bags of sand will it take to fill the new sandbox?

20 bags

Step-by-step explanation: The sandbox is being double so the 10 bags become doubled as well

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:

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