The answer has to be -9 because -9 + -4 is equal to -9 - 4, and that equals -13.
Answer:
7 × 8
Step-by-step explanation:
7 number of students × 8 books each student has 7 × 8 = 56
Y=6, X=72
Y=?,X=8
12Y=X
12Y/9=X/9
4/3Y=8
Y=8*3/4
Y=6
88 % students of the class hand in their projects on time
<em><u>Solution:</u></em>
Given that, Ms.Khans class, 22 out of 25 students hand in their projects on time
Total number students = 25
Students hand in their projects on time = 22
<em><u>To find: percent of the class hand in their projects on time</u></em>

Substituting the values, we get

Thus 88 % students of the class hand in their projects on time