Help me with my math work please! A train is moving at a constant speed. the graph above shows the distance-time relationship for the train, where x represents the time, in hours, and why represents the distance traveled, and kilometers.

which function represents the distance-time relationship shown on the graph?

A. y = 80x
b. y = 200 x
c. y = x + 80
d y = 2.5 x + 200​

Consider a bag that contains 220 coins of which 6 are rare indian pennies. for the given pair of events a and b, complete parts (a) and (b) below. a: when one of the 220 coins is randomly selected, it is one of the 6 indian pennies. b: when another one of the 220 coins is randomly selected (with replacement), it is also one of the 6 indian pennies. a. determine whether events a and b are independent or dependent. b. find p(a and b), the probability that events a and b both occur.

The coordinates r(1, -3), s(3, -1) t(5, -7) form what type of polygon? a right triangle an acute triangle an equilateral triangle an obtuse triangle

Which strategy is used by public health to reduce the incidence of food poisoning?