What does it mean if the probability is 20% that a spinner will stop in a red section?

a.
there is one chance in 5 that the spinner will stop in a red section.

b.
it is 20 times more likely that the spinner will stop in a red section than any other section.

c.
if the spinner is spun 100 times it is certain that it will stop in the red section exactly 20 times.

d.
there is one chance in 20 that the spinner will stop in a red section.

What two criteria are needed for triangles to be similar

The tuition costs, c, for a local community college are modeled by c(h) = 250 + 200h, where h represents the number of credit hours taken. the local state university has tuition costs, s, modeled by the function s(h) = 300 + 180h. how many credit hours will a student have to take for the two tuition costs to be equal? round the answer to the nearest tenth of an hour.

Dexter read 11 science fiction books and 5 history books. lena read 9 science fiction books and 4 history books. compare the students’ ratios of science fiction books to history books. 1. determine the ratios’ form:    science fiction books to history books 2. write the ratios as fractions:    dexter: 115; lena: 94 3. rewrite with a common denominator. 4. compare. 5. answer the question. determine which shows the correct comparison of the ratios for this problem.