Which statements give the correct constant of proportionality as y = kx?
Choose the correct answers.

1) It takes 5 cans of paint (x) to cover 10 dog houses (y).
y = 2x

2)A lawn service charges $258(y) for mowing 6 yards (x).
y = $43x

3)8 pounds of beef (x) costs $78 (y).
y = $9x

4)Beverly can reads 315 pages (y) in 7 hours (x).
y = 45x

5)10 chocolate bars ( x) contain 3,330 calories (y).
y = 333x

Valentino starts with a population of 1,500 amoebas that increases 35% in size every hour for a number of hours, h. the expression 1,500(1+0.35)h finds the number of amoebas after h hours. which statement about this expression is true? a. it is the initial population raised to the growth factor after h hours. b. it is the sum of the initial population and the percent increase. c. it is the sum of the initial population and the growth factor after h hours. d. it is the product of the initial population and the growth factor after h hours.

Polygon hh is a scaled copy of polygon gg using a scale factor of 1/4. polygon h's area is what fraction of polygon g's area?

The equation |pl = 2 represents the total number of points that can be earned or lost during one turn of a game. which best describes how many points can be earned or lost during one turn? o o -2 2 oor 2 -2 or 2 o