At Washington High School, there are 28 students in the math club and 25 students in Key Club. 31 students are members of just one of these two clubs. How many students are members of both clubs?

According to the 2008 u.s. census, california had a population of approximately 4 × 10^7 people and florida had a population of approximately 2 × 10^7 people. which of the following is true? a. the population of florida was approximately two times the population of california. b. the population of florida was approximately twenty times the population of california. c. the population of california was approximately twenty times the population of florida. d. the population of california was approximately two times the population of florida.

1yd 1 ft = 1 1/12 1 1/3 1 1/2 1 1/6

What are two numbers that add up to -9 and multiply to -10 best answer gets branliest and 100 extra points