Which ratio is equivalent to 9:180 A 5:200
B 12:240
C 10:400
D 8:560

pls answer all give u brainlest

Step-by-step explanation:

B 12:240

hope it helps you

answer: expected value of x = 1.0

step-by-step explanation:

p(x=0) = 0.25

p(x=1) = 0.50

p(x=2) = 0.25

expected value for x = 0×0.25 + 1×0.5 + 2×0.25 = 1.0

5   1/4   miles per hour

step-by-step explanation:

15   3/4 / 3 = 5   1/4