Normally, a balloon like mine is fueled using 2 tanks that each
hold 10 gallons of gas. however, i do not have such big tanks.
my tanks can only hold 3/7 of that amount. how many tanks
do i need to fill in order to get the required 20 gallons of gas?

What expression is equivalent to log3(x+4)

Atest consists of 10 multiple choice questions, each with 5 possible answers, one of which is correct. to pass the test a student must get 60% or better on the test. if a student randomly guesses, what is the probability that the student will pass the test?

If the average of x,y and z is 15 what is their sum