Im so confused can someone explain how to answer this?

7 + 5v - 0 + 2v - 1

Which of the following values cannot be probabilities? 0.08, 5 divided by 3, startroot 2 endroot, negative 0.59, 1, 0, 1.44, 3 divided by 5 select all the values that cannot be probabilities. a. five thirds b. 1.44 c. 1 d. startroot 2 endroot e. three fifths f. 0.08 g. 0 h. negative 0.59

Two times a number plus three times another number equals 4. three times the first number plus four times the other number is 7. find the numbers

If sin(x) = 0 and cos(x) = 1, what is tan(x)?