Lan has a jar full of pennies. one penny weighs about 5*10^-3 pounds. the pennies in ian's jar weigh a total of 10 pounds. about how many pennies are in lan's jar

Mass of one penny = .005 pounds

10 pounds of pennies = 10 / .005 = 2,000 pennies

Step-by-step explanation:

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: