$725, 3/4 of 20 equals 15 necklaces. 15 times 40 equals 600. Then, 5 times 25 results in 125. Finally, 125 plus 600 equals 725.
The correct option is the first one - refer to the image for the solution:
Answer:
1.4×10⁻⁵=0.000014
Step-by-step explanation:
Since the exponent of the 10 term is negative, shift the decimal point to the left by 5 positions;
1.4×10⁻⁵=0.000014