Mark retired from competitive athletics last year. in his career as a sprinter he had competed in the​ 100-meters event a total of 328 times. his average time for these 328 races

x > 1.3

step by step:

8.5−0.9x> 9.8−1.9x

step 1: simplify both sides of the inequality.

−0.9x+8.5> −1.9x+9.8

step 2: add 1.9x to both sides.

−0.9x+8.5+1.9x> −1.9x+9.8+1.9x

1x+8.5> 9.8

step 3: subtract 8.5 from both sides.

1x+8.5−8.5> 9.8−8.5

1x> 1.3

step 4: divide both sides by 1.

1x/1 > 1.3/1

b.-4 units

all you   do is count how many times you move

r = 78539458390583095803458309458039485093485 or just 3

step-by-step explanation:

b. 2 and 4

step-by-step explanation: