Answer two questions about Systems A and B: System A:
8x−3y=0
2x+7y=3​
System B:
​8x−3y=0
8x+28y=12​
1) How can we get System B from System A?
Choose 1
A: Replace one equation with a multiple of itself
B: Replace one equation with a multiple of the other equation
C: Replace one equation with itself where the same quantity is added to both sides
D: Replace one equation with itself where a quantity is added to only one side

2) Based on the previous answer, are the systems equivalent? In other words, do they have the same solution?
Choose 1
A: Yes
B: No

For the following sequence determine the common difference (if it is an arithmetic sequence) or the common ratio (if it is a geometric sequence).

You drop a rubber ball off the roof of a 50 meter high building onto a paved parking lot. it bounces back up with every bounce, but not quite all the way back up to you. after the first bounce it bounces back only 80 percent of the distance it was dropped from. the pattern continues, meaning after every bounce it comes up to just 80 percent of the previous maximum height. so if before the first bounce the height is 50 meters, what height does the ball reach after the fifth bounce? round your answer to one decimal place and chose the correct response from the choices below:

Ariel is working at a meat packing plant for 5 nights a week. her regular wage is $11 an hour. she earns tine and a half for any overtime hours. this week she worked 9 hours of over time .how much will ariel earn for overtime this week ?