diff --git a/week10_quiz.png b/week10_quiz.png
index 8103326..64e923c 100644
Binary files a/week10_quiz.png and b/week10_quiz.png differ
diff --git a/week11_quiz.png b/week11_quiz.png
index 489b007..35b80a2 100644
Binary files a/week11_quiz.png and b/week11_quiz.png differ
diff --git a/week12_quiz.png b/week12_quiz.png
index 77faa46..ddd1093 100644
Binary files a/week12_quiz.png and b/week12_quiz.png differ
diff --git a/week4_quiz_solution.png b/week4_quiz_solution.png
index 1f665ae..027464a 100644
Binary files a/week4_quiz_solution.png and b/week4_quiz_solution.png differ
diff --git a/week5_quiz.png b/week5_quiz.png
index b3a24d1..0ec51fb 100644
Binary files a/week5_quiz.png and b/week5_quiz.png differ
diff --git a/week6_quiz.png b/week6_quiz.png
index ef3e93c..08d428c 100644
Binary files a/week6_quiz.png and b/week6_quiz.png differ
diff --git a/week7_quiz.png b/week7_quiz.png
index e313200..5ee73a3 100644
Binary files a/week7_quiz.png and b/week7_quiz.png differ
diff --git a/week8_quiz.png b/week8_quiz.png
index 3cb0839..89c7a0c 100644
Binary files a/week8_quiz.png and b/week8_quiz.png differ
diff --git a/week9_quiz.png b/week9_quiz.png
index d54dd1e..adeee2b 100644
Binary files a/week9_quiz.png and b/week9_quiz.png differ