A computer randomly selects a number from the given set.

{18, 47, 51, 60, 63, 65}

What is the probability that a number greater than 50 is selected?

Enter your answer as a fraction, in simplest form, in the box.

P(> 50) =

$

Find the length of the following tangent segments to the circles centered at o and o' whose radii are 5 and 3 respectively and the distance between o and o' is 12. what is the tangent segment of cd?

Negative 5 1/12 + negative 4 1/4 + 6 3/4

When george started his current job, his employer told him that at the end of the first year, he would receive two vacation days. after each year worked, his number of vacation days will double up to five work weeks (25days) of payed vacation. how many vacation days will he have in 4 years