Your percent grade varies directly with the number of correct answers. You got a grade of 80 when you had 20 correct answers, What would your percent grade
be with 24 correct answers?
96%
help!!!

Which shows the correct solution of the equation 1/2a+2/3b=50, when b=30?

What is the value of x in the following equation? -3x-2=2x+8

Aproduction manager test 10 toothbrushes and finds that their mean lifetime is 450 hours. she then design sales package of this type of toothbrush. it states that the customers can expect the toothbrush to last approximately 460 hours. this is an example of what phase of inferential statistics