Tent sized portraits has four different backgrounds and five poses in which to photograph children how many different pictures are there to choose from

20

Step-by-step explanation:

Assuming each pose can be used with each background, there are 4×5 = 20 possible combinations.

That is, for each one of the 4 backgrounds, there can be 5 poses. Then the total number of pictures is ...

  5 + 5 + 5 + 5 = 4×5 = 20

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: