Question

can someone check these for me?
19. s*250=$15
$15.00
250 = 0.06
s=0.06
to check me answer/ 0.06*250=$15
20. D*9=$33.75
$33.75
9 =3.75
To check me answer/ 3.75*9=$33.75 so my answer is 3.75

21. Six friends are driving in 1 minivan to a state
park. The park charges $5 per vehicle, and the
friends plan to split the cost evenly. How much
will each pay?
6/m=$5
6/6=$5/6= 1.2
me answer is 1.2

Answer 1

19 is wrong i think

Answer 2

oops sry its correct

Answer 3

ok any others?

Answer 4

thx so much!