If 30 is increased by 20%, what is the new amount?

The new amount is 36

Step-by-step explanation:

we know that

100%+20%=120%

Let

x> the new amount

The number 30 represent the 100%

so

by proportion

30/100%=x/120%

x=120*30/100=36

yes

step-by-step explanation:

yes

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: