What times what equals -20 and those same numbers added together equals 8

Arunning track in the shape of an oval is shown. the ends of the track form semicircles. a running track is shown. the left and right edges of the track are identical curves. the top and bottom edges of the track are straight lines. the track has width 56 m and length of one straight edge 130 m. what is the perimeter of the inside of the track? (π = 3.14) 260.00 m 347.92 m 372.00 m 435.84 m

Find the amplitude of a sinusoidal function that models this temperature variation

Idon't get undoing if its pass adding and subtracting so can someone ? x-2 over 5 = 18