Answer:
.8 = P (laura)
Step-by-step explanation:
Sally passes is .7
both passing is .56
P(sally and laura passing) = P(sally) * P(laura)
.56 = .7 * P(laura)
Divide each side by .7
.56/.7 = .7 * P(laura)/ .7
0
0 is what i got
704
7000 + 40 (7 thousands + 4 Tens) Divide that by 10.
7040/10 = 704
