There are 200 balls of the same size inside a dark room. There are 100 white balls, 55 red balls, and 45 black balls. If one student picks up a ball randomly, what is the probability that he picks up a red ball?

answer choices

22.5%

27.5%

45%

55%

Allison practices her violin for at least 12 hours per week she practices for three fourths of an hour each session if Allison has already practiced 3 hours this week how many more sessions remains for her to meet or exceed her weekly practice goals.

Emma is saving for a bicycle that costs 300$. This month sje reaches

what is the product of the binomial (x+4) (x+3)

If f (x) = 5x^0+4x^-3 then f (a) = ?

What is the factorization of the polynomial below - x^2-15x-56

A newspaper reporter wants to know how popular the hobby of bird watching is in the city. He asked people at the local bird refuge if they watched birds as a hobby. Which of the following best explains whether the reporters data is valid or not?

I am very confused on how to figure out if y = 3/4x is proportional?

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At 12 o'clock the temperature was 7°C. The temperature decreased by - 20°C. What is the new temperature?

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