WILL GIVE BRAINLIEST 36 POINTS Please show the steps.
Which linear system of equations does the matrix represent M=[87|4] [20|5]
A. 8x+7y+4z=0
2x+0y+5z=0
B. 8x+7y=4
2x+0y=5
C. 8x-7y-4z=0
2x+0y+5zz=0
D. 8x+7y=-4
2x+0y=-5

1jessica's home town is a mid-sized city experiencing a decline in population. the following graph models the estimated population if the decline continues at the same rate. select the most appropriate unit for the measure of time that the graph represents. a. years b. hours c. days d. weeks

Select the correct answer. what is the exact value of sin (157.5°)? a. 'sqrt(2 - sqrt(2))/2 b. *"-"'sqrt(2 + sqrt(2))/29 c.'sqrt(2 + sqrt(2))/4" d. "-"sqrt(2 + sqrt(2))/4)

George writes the mixed number as sum and uses the distributive property 1/2.-2/5=1/2-2+2/5=1/2