Which is equivalent to 8s + 20t by the distributive property? question 3 options: 4s(2 + 5t) 8s(1 + 3t) 8(s + 20t) 4( 2+ 5t)

9/10 divide by -3/15 as a mixed number

How long must $542 be invested at a rate of 7% to earn $303.52 in interest? in a easier way

Arace is 10 kilometers long.markers will be placed at the beginning and end of the race course and at each 500 meter mark.how many markers are needed to mark the course for the race?