Samantha answered 60 questions correctly on her multiple choice math final and earned a grade of 75%. How many total questions were on the final exam?

Urgent? will give brainliest given that the blue triangle is a right triangle, which expression correctly gives the area of the red square? a) a2 + b2 b) a2 - b2 c) a2 - c2 d) c2 - a2

Write each rational number in the form a/b, where a and b are integers. 1. 5 1/6 2. -12

Give another definition of variability and explain how it can be calculated.