If a and b and independent events, which of these conditions must be true?
p(a and b)=p(a)
p(a and b)=p(b)
p(a and b)=p(a) x p(b)
p (a and b)=p(a) + p(b)

150.6

all i did was i multiplied 5.02 by 30

if y=4x then you will substitute 4x in for y in the second equation.

8x + 4x = 18 combine like terms

12x = 18 divide by 12 on both sides

x = 18/12 or 3/2

now replace x in the first equation with 3/2 to get

y = 4 3/2

y = 6

the answer is a

(3/2,6)

hope that .

brainliest is always apprectiated

there should be an link icon on the bottom of the text box you get. it looks like a paperclip!

simple 80 pieces in 1 sercing so 80*47=3760+20=3780