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D.

Step-by-step explanation:

y is the dependent variable is the amount of money she earns, which depend on x which is the indipendent variable, the number of dogs she walks.

so you’ll have y = 10x

x is the ind. variable, which is the number of dogs She walks.

y is the dep., which is the money she earns.

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: