Does anyone mind checking this image out

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Step-by-step explanation:

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A "constant rate of change" means "linear," as in y=mx+b where m is a constant slope, because it's changing by the same amount all the time.

Notice after she changes to the compounded amount, there's a curve to the graph.  This is no longer linear, no longer a "constant rate of change."

Does that get you to your answer?

(Remember "for what interval" is asking "for what interval of x-values".)

c. (3,2,6) is the answer.

(sin 42)/31. = sinx)/37

sinx = 37 (sin42)/31

= 37× 0.66/31 = 0.787

x= 51.9

other angle opposite to y = 180-51.9-42

= 180- 93.9 =86.1

so

sin42)/31 = sin 86.1)/y

0.021 = 0.997 /y

y= 0.997/0.021 =47.47