Acheetah can run 70 miles per hour. what is this speed in feet per hour? if there are 5280 feet in 1 mile.

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

When you answer this can you explain

Evaluate each expression. determine if the final simplified form of the expression is positive or negative -42 (-4)2 42