The equivalent expressions are: A and C
<u><em>Answer:</em></u>
5%
<u><em>Explanation:</em></u>
% she earned in interest can be calculated by calculating the % of increase in the balance
<u>We have:</u>
Original balance = $12,450
Amount of interest = $622.5
<u>This means that:</u>
new balance = 12,450 + 622.5 = $13,072.5
<u>Now, we can get the percentage of increase:</u>
% of increase = 
<u>Substitute with the values we have to get the percentage of interest earned as follows:</u>
% of interest earned =
= 5%
Hope this helps :)
They're travelling towards each other;
Effective speed= 310+390 = 700mph
Distance = 2100 (omit 200m as we want to know the time when they're still 200m apart)
Time = distance/ speed
T= 2100 / 700
T= 3hrs
Answer:
8 hundredths
Step-by-step explanation:
The 7 is in the tenths place, so that means the 8 means 8 hundredths.