Suppose the complex s is obtained by sewing together the complexes s1 and s2 along an edge. give a formula for ξ(s) in terms of ξ(s) and ξ(s2). be sure to explain your reasoning.

Henry is an avid reader, he devours 90 pages in half an hour how many pages has henry read per minute?

Neoli is a nurse who works each day from 8: 00 am to 4: 00 pm at the blood collection centre. she takes 45 minutes for her lunch break. on average, it takes neoli 15 minutes to collect each sample and record the patient's details. on average, how many patients can neoli see each day?

Acomputer store buys a computer system at a cost of $370.80. the selling price was first at $ 618, but then the store advertised a 20 % markdown on the system. answer parts a and b. a. find the current sale price.