5miles = 8 km

peter goes on walks: 15 miles in 6 hours

a) what is the average walked in mph

b) sunita says he walked more than 20 km. is she right? how?

A) He is walking 2.5 miles an hour

B) sunita is right he walked 24.14 km which is more than 20

the 3rd option is right

step-by-step explanation:

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