38.23 hope that helps give 5 stars and thanks if it helps you
Either a student passes an exam or fails it. that means the percentage of students who pass plus the percentage of students who fail must add to 100%. this also means that if 22% pass, then 78% fail. there are 68 students total and 78% fail so the number of students failing is:
(78/100)(68) = 53.04 which is approximately 53 students.
let me know if you have any questions!!!!
SOLUTION
In this question, we are meant to expand the expression:

The term in that equation is 3x 7x and -9 hope this helps