Aand b are independent events. which equation below must be true?
a. p(a) = p(b)
b. p(a | b) = p(a)
c. p(a ∩ b) = p(a)
d. p(b) = p(a | b)

Zoe placed colored blocks on a scale in science class. each block weighed 0.8 ounces. the total weight of all the colored blocks was 12.8 ounces. how many blocks did zoe place on the scale? write and solve an equation to find the answer.

What are “like terms”? why can we only add like terms?

Which expression converts 45 degree to radians