A train travels at an average speed of 70 miles per hour for one hour. It stops at a station for a half hour. Then the train travels at an average
speed of 60 miles per hour for another hour.

d

step-by-step explanation:

the ratio of balloons to tables is 5: 2 and the constant variation is 5.

the equation is y=5x

step-by-step explanation:

the true statements are:

r = set of real numbers

n = set of natural numbers, 1,2,

w = n u{0} = {0,1,}