elina has a 22% chance that her child will have spina bifida. if she births two child, what is the percentage that none of them with have spina bifida?

Empty box + box + empty box fill in the box is equal to 30 how

Last year, a state university received 3,560 applications from boys. of those applications, 35 percent were from boys who lived in other states. part a)how many applications did the university receive from boys who lived in other states? part b)applications to the university from boys represented 40percent of all applications. how many applications did the university receive in all? i don't how to do part b so me and plz tell how you got your answer

In a class, there are 12 girls. if the ratio of boys to girls is 5: 4 how many boys are there in the class