Answer:

Step-by-step explanation:
1.
×
2.
<span>We know that the runner completed her first race in 17.8 seconds and that she completed her second race in 16.9 seconds. Then the difference between the first race and the second race is .9 seconds. Now we divide .9 by 17.8 and multiply by 100 to get the percent decrease. We get 5.06%. The percent decrease in her time is 5%.</span>
Answer:
<h3>He should have found 8 as the exponent, not –8.</h3>
Step-by-step explanation:
Given the expression simplified by Pablo as 
On simplification we have;
According to one of the law of indices 
Applying this law to the question will give;

Based on the calculation above, the exponent of 2 is 8 which means that Pablo should have found 8 as the exponent, not –8.
Solution:
Two rows of tapes will fit in the box.
Box wide = 10 inches
Each tape wide = 5/8 inches
10/ (5/8) = (10 * 8)/5
= 16
There are two in each row. So, 32 tapes will fit in the box.