Stella graphs the equation y=1/3x – 2

select all statements about stella's graph that are true.

a the graph is a straight line.

b the line passes through the origin.

c the line passes through the point (0, –2)

d the slope of the line is 3.

the y-intercept of the line is 2.

Ariana starts with 100 milligrams of a radioactive substance. the amount of the substance decreases by 20% each week for a number of weeks, w. the expression 100(1−0.2)w finds the amount of radioactive substance remaining after w weeks. which statement about this expression is true? a) it is the difference between the initial amount and the percent decrease. b) it is the difference between the initial amount and the decay factor after w weeks. c) it is the initial amount raised to the decay factor after w weeks. d) it is the product of the initial amount and the decay factor after w weeks.

If f(x)=x+7 and g(x)=1/x what is (fog)(x)

Acd that is originally priced at $15.85 red-tagged for the sale. what is the sale price of the cd