In a class of 30 pupils, 18 take French and 17 German. 3 take neither. (i) How many take both French and German?
(ii) How many took French but not German?
(iii) How many pupils take French or German?

How do i do this activity, is appreciated

At the electronics store you have a coupon for 20% off up to 2 cds you buy for cds with the original cost of $10.99 each the sales tax is 5% what is the total cost of your purchase

Can you me with this question? i'll reward *30 points i just need with this one question so that i could solve the others. * edit: i originally set up the question to reward 30 points, but for some reason i can only reward 15. if you don't get 30, then i'm sorry. i'm still kind of new to this site