Answer:
a number b is decreased by 5 then doubled
(b -5) x 2
the sum of 20 and h is divided by f
h/f = 20
Marissa's hair was 10inches long and then she cut b inches
10 - b
the sum of twice c and 10
2 x c = 2 x 10
anna had a n piece of candy and ate 5. she split remaining amount with three friends
(n-5) = (X / 3)
I hope my answer are correct and helpful a little bit.