Cross multiplication
or multiplying by a number which goes in both rates
Answer:
A
Step-by-step explanation:
it is A
Answer:
no solution
Step-by-step explanation:
p-4=-9+p
p=-5+p
0=-5
Answer:
0.8
Step-by-step explanation:
A: P(1) = .6, P(2) = .5, P(1 and 2) = .3
P(1 or 2) = P(1) + P(2) - P(1 and 2) .6 + .5 - .3 = 0.8
