In a language Institute all the students study either Japanese or Korean or Hebrew. In a class of 55 students, 21 students study Japanese and Korean, 23 study Korean and Hebrew, 25 study Japanese and Hebrew. If 18 students study only one language, how many students are studying all three languages?

Anew landowner is interested in constructing a fence around the perimeter of her property. her property is 1,080√30 feet wide and 500√20 feet long. what is the perimeter of the property? (recall that the perimeter is the sum of each side of a shape or boundary). a 1,580√40 feet b. 5,320√5 feet c. 3,160√20 feet d. 10,640√5 feet

At the movie theatre, child admission is $5.20 and adult admission is $9.70. on sunday three time as many adult tickets as child tickets were sold, for a total sales of $788.90. how many child tickets were sold that day?

Akindergarten class has 9 girls and 11 boys in class.what percent of the class are girlsit rain