HELp with this l would give you brainlist

10

Step-by-step explanation:

So if you know that 10 skeins makes 4 scarves... then 20 skeins makes 8 scarves (because you doubled it)

and if 10 skeins make 4 scarves... then half that number of skeins should make half the number of scarves... so 5 skeins makes 2 scarves

So we know that 20 skeins makes 8 scarves and 5 skeins make 2 scarves... all we have to do is add up the skeins and find we get 10 scarves

44.75

Step-by-step explanation:

5.5 + (- 2.75) - 7(18 ÷ - 3)

5.5 - 2.75 - 7(- 6)

5.5 - 2.75 + 42

2.75 + 42

44.75