Ethan ordered 4 sub sandwiches for a party. Each 1/2 sandwich is one serving. does he have enough to serve 7 friends? How much is leftover or how much more is needed? Explain. (i need help with this question on my math. I think the teacher wants to use reciprocals?) plz help. it is 6th grade (reciprocal) math.

b

step-by-step explanation:

a difference is the result of subtraction. while each of these expressions has subtraction in it, a difference will be the result when subtraction is the last operation applied in the order of operations for the expression. this means subtraction must be outside of the parenthesis. only b has this.

-4

step-by-step explanation:

do 6-10=

if u need it to be negative.

i can't solve unless i know what the line is

step-by-step explanation:

welcome to/p>

yes

step-by-step explanation:

yes