What is the unit rate for fred's sub shop? (will post photo/link in the comments)

a. $10 for 2 subs
b. $5 for 2 sub
c. $1 for 1/5 of a sub
d. $30 for 6 subs 2. what is the slope-intercept equation for the cost of a sub at fred's sub shop?

a. y = 2x
b. y = 10x
c. y = 5x
d. y = 5x + 2 3. the data in the table are linear. use the table to find the slope.(will link in the comments)

a. 3/2
b. -3/2
c. -2/3
d. 2/3 4. what hill described in the table is the steepest? explain.(will link in the comments)

a. bell hill: it rises one foot for every 4 feet of horizontal travel.

b. dixie hill: it rises two feet for every 1 feet of horizontal travel.

c. liberty hill: it rises four feet for every three feet of horizontal travel.

d. liberty hill: it rises 3/4 foot for every 1 feet of horizontal travel.
my answers: 1. a 2. not really sure, d? 3. -3/2? 4. d?