What is the X- Intercept

Successful implementation of a new system is based on three independent modules. module 1 works properly with probability 0.96. for modules 2 and 3, these probabilities equal 0.95 and 0.90. compute the probability that at least one of these three modules fails to work properly.

If 10 men take 18 days to mow 60 acres of grass, how long will 15 men take to mow 80 acres?

Find the number of liters in 12.8 gal of gasoline. round to the nearest hundredths