What is 15% of 75.50 and how did you get it

If the wwight of a package is multiplied by 7/10 the result is 65.8 find the weight of the package

Suppose i pick a jelly bean at random from a box containing one red and eleven blue ones. i record the color and put the jelly bean back in the box. if i do this three times, what is the probability of getting a blue jelly bean each time? (round your answer to three decimal places.)

If p(a) = 0.70 and p(b) = 0.20, then a and b are independent events if