Which number is a factor of 22, but not a multiple of 2?

What is the y intercept of f(x)=(1/2)^x?

In a two-digit number the units' digit is 7 more than the tens' digit. the number with digits reversed is three times as large as the sum of the original number and the two digits. find the number.

Graph the line with the given slope m and y-intercept b. m=-3,b=1