She needs 96 inches of lace because 4 x 24 is 96.
Answer:

Step-by-step explanation:
It is required to find the value of the missing exponent in the below value i.e.

Let the exponent is x.
Any number can be written in the scientific notation as :

a is a real number
b is any integer
In this case, the decimal is applied before 8 numbers. It means that the value of x is 8.
2. He can break his strand of 10 blocks into 3 3 times 4. I think it is 74 blocks are needed.
Hope this helps!
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