"how many four-digit odd numbers are possible if the leftmost digit cannot be zero"

How does a low unemployment rate affect a nation's economy? a. the nation has a higher number of productive resources. b. the nation can spend more money on for unemployed people. c. the nation can save money by paying lower salaries to a large workforce. reset

Evaluate the expression. (9 + 5)(3 + 2)0

Find the maximum value of p= 4x + 5y subject to the following constraints :