-0.85 - (-¼) + 0.4 + (-⅖) ?
what is the value of the expression?

=−3/5

Step-by-step explanation: Hope this help :D

3=log(n)=2

answer a: product property

answer: expected value of x = 1.0

step-by-step explanation:

p(x=0) = 0.25

p(x=1) = 0.50

p(x=2) = 0.25

expected value for x = 0×0.25 + 1×0.5 + 2×0.25 = 1.0