Express each of the following as a percentage a) 19k out of 3.80 naira
b) 600 ml out of 8ml
c) 1 hr 30 mins out of 2 hrs
d) 1.20 naira out of 3 naira
e) 500g out of 8kg
f) 45kg 20g out of 50kg

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

(a) (8%) compute the probability of an even integer among the 100 integers 1! , 2! , 3! , until 100! (here n! is n factorial or n*(n-1)*(n-2) *… 1) (b) (16%) compute the probability of an even integer among the 100 integers: 1, 1+2, 1+2+3, 1+2+3+4, …., 1+2+3+… + 99, and 1+2+3+… + 100

Is the product of two rational numbers irrational or rational? first, make a hypothesis by multiplying two rational numbers. then, use variables such as x=a/b and y=c/d and the closure property of integers to prove your hypothesis.