Mrs lin is sewing costumes for her grandchildren. She is making three lion costumes one zebra costume and two bear. Costumes fabric costs $ 7.49 per yard how much fabric does Mrs lin need

Step-by-step explanation:

The complete exercise is: "Mrs. Lin is sewing costumes for her grandchildren. She is making three lion costumes, one zebra costume, and two bear costumes. Fabric costs $7.49 per yard. How much fabric does Mrs. Lin need?

"

You need to find the total amount of fabric (in yards) that Mrs. Lin needs to make three lion costumes, one zebra costume, and two bear costumes.

Let be:

First, you can convert the mixed numbers given in the exercise to decimal numbers:

- Divide the numerator by the denominator.

- Add the quotient to the Whole number part.

Then:

Therefore, you can determine that "l", "z" and "b" are:

Finally, in order to find the total amount of frabric (in yards) that she needs, you need to add "l", "z" and "b". Then, you get:

according to the triangle sum theorem, all the angles in a triangle must add up to 180 degrees. if we know one angle is already 90, we do 180-90=90. the other 2 angles must add up to 90, exactly.

step-by-step explanation:

a. positive: 2 or 0; negative : 2 or 0; complex: 4or2or0