Please help!! Find the angle of depression from point A to point C

Complete the equation of the line through (−10,3) and (−8,−8). use exact numbers.

Jenisey has $24 to spend on seven pencils. after buying them she had $10. how much did each pencil cost.?

Sundar used linear combination to solve the system of equations shown. he did so by multiplying the first equation by 5 and the second equation by another number to eliminate the y-terms. what number did sundar multiply the second equation by? 2x+9y=41 3x+5y=36