Driving from oban to stranraer a driver average 8 miles per gallon of fuel. if fuel cost 83 cents a gallon how much will the journey cost in fuel

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.

Before simplifying, how many terms are there in the expression 2x - 5y + 3 + x?

Offering 30 if a plus b plus c equals 68 and ab plus bc plus ca equals 1121, where a, b, and c are all prime numbers, find the value of abc. the answer is 1978 but i need an explanation on how to get that.