An operation * is defined on the set of real numbers, R, by x * y = x + y +3xy. If * is commutative,: 1) Find the identity element e of R under the operation *.
2) Determine the inverse of an element x ∈ R, under the operation *.
3) Find the value x ∈ R, for which no inverse exists.

What are the values of m∠abc, m∠cbf, m∠abd and m∠dbe in the given figure? explain or show your work?

1. if we have 3 babies what is the probability they’re going to be all boys? 2. if we roll 2 die at the same time what is the probability of getting less than 10 on the first roll and a 5 on the second roll 3. if we have 3 babies what is the probability their is going to be 2 girls? 4. if we have 3 babies what is the probability of having no more than 1 girl? 5. it we have 3 babies and then have another 3 babies what is the probability of us having at least 1 boy and then having all girls?

10% of 1,900,000. show me how you got the answer