30 < 2x - 6
solve the two step inequalities

Farnesene is a sesquiterpene. how many different isomers arising from double-bond isomerizations are possible? g

One card is dealt from a 52 card deck. find the probability that the dealt card is a 4 or a black 7

Iq scores for adults age 20 to 34 years are normally distributed according to n(120, 20). in what range does the middle 68% of people in this group score on the test?