Riley has 3/4 of a pound of his favorite chocolate chunk fudge. He gives 1/3 of it to his brother. What fraction of a pound does Riley give his brother?
PLZ HELPP IT MAKES NO SENSE

The number of branches on a tree demonstrates the fibonacci sequence. how many branches would there be on the next two levels of this tree? 13 | | | m branches

The annual snowfall in a town has a mean of 38 inches and a standard deviation of 10 inches. last year there were 63 inches of snow. find the number of standard deviations from the mean that is, rounded to two decimal places. 0.44 standard deviations below the mean 2.50 standard deviations below the mean 0.44 standard deviations above the mean 2.50 standard deviations above the mean

How do i simply this expression (quadratic formula basis) on a ti-84 or normal calculator?