Select all of the trips that would take 2 hours. 1.Drive 60 miles per hour between Buffalo and Seneca Falls, which are 120 miles apart.
2.Walk 3 miles per hour to school, which is 1.5 miles away.
3.Take a train going 80 miles per hour from Albany to New York City

#1 and #3

Step-by-step explanation:

if you divide the total distance between them you will get 60 for #1 and 80 for #3 if you multiply them both by 2 you get the total amount of miles for 2 hours

i'm assuming it's looking for the missing length, which should be 4cm

hope this !

hello from mrbilldoesmath!

answer:

the domain is the set { -2, 0, 2, 3}

discussion:

the domain is the set of x values in the ordered pairs (x,y). taking the x, or first component, of each ordered pair gives   -2, 0, 2, 3.

you,

mrb