You can do this by cross multiplying
Answer:
11 positive integers can be expressed.
Step-by-step explanation:
Consider the provided information.
The number of possible prime numbers are 5,7,11,and 13.
There are 4 possible prime numbers.
How many positive integers can be expressed as a product of two or more of the prime numbers, that means there can be product of two numbers, three number or four numbers.
The formula to calculate combinations is: 
The number of ways are:




Hence, 11 positive integers can be expressed.
Answer:
oh ok thanks for free points
Step-by-step explanation:
Answer is C
Because 2 is your Y intercept and -1/2 means your going to move down 1 then move 2 to the right