Answer: 55 cm
Explanation:
Hi, to answer this question, first, we have to convert the meters into centimeters.
Since: 1 m = 100 cm
We have to multiply the length of the first frame by 100 to express the length in cm.
9/10 m x 100cm/m = 90 cm
Finally, since she needs 35 centimeters less wood for a second frame, we have to subtract 35 cm to the amount of woof needed for the first frame.
90-35 = 55 centimeters.
Feel free to ask for more if needed or if you did not understand something.