 
<translate> Joey ga-ezu ike ma ọ gụchaa peeji iri atọ na atọ. Joey ga-agụ peeji 30 - 21 = peeji 9 ọzọ. Azịza ya bụ: 9. <eng> Joey will take a break after 30 * 0.7 = 21 pages. Joey will have to read 30 - 21 = 9 pages more.
The answer: 9. 