If 5a = 20b, then b/a=

a. 4

b. 1/4

c. 4/1

d. 10

What is the y intercept of f(x)=(1/2)^x?

Logan wants to know how many skateboards have defective parts. he inspects 20,000 skateboards and keeps track of the number of defects per board. use his probability distribution table to find the expected value for defects on a skateboard.

Atheater wants to build movable steps that they can use to go on and off the stage. they want the steps to have enough space inside so they can also be used to store props. how much space is inside the steps?