Answer:
85 beats per minute
Step-by-step explanation:
khan academy
Answer:
See attachment
Step-by-step explanation:
The given system is :


Let us equate both equations and solve for x.






The the two lines of this system will meet at (-4,9)
The graph is shown in the attachment.
Answer:
315 sq. in
Step-by-step explanation:
15 * 21 = 315
The only numbers that go into 125 and 560 evenly are 1 and 5