Sophie answered 84% of the questions on her science test correctly. If she answered 21 questions correctly, how many questions were on the test?

An advertisement is on a flyer that has a thickness of 8.2 × 10-5 meters. each measurement below is the thickness of a stack of flyers. drag each measurement to the correct stack.

Find the value of p for which the polynomial 3x^3 -x^2 + px +1 is exactly divisible by x-1, hence factorise the polynomial

What is the value of the expression i 0 × i 1 × i 2 × i 3 × i 4? 1 –1 i –i