a measurement using a ruler marked to an eighth of an inch is reported as 3 1/2 inches. what is the range of values for the actual measurement?

i need more information to answer

30 people weigh 160 pounds or more

or

step-by-step explanation:

we need to solve for 'x' the following equation:  

we have that:

⇒

⇒ ⇒

factorizing, we get that:

  ⇒

then, the solutions are: or

nothing extraneous has been found!