Which function and domain could represent the given graph?

f(x) = 1 – ⌊x⌋; –3 < x < 3
f(x) = 1 + ⌊x⌋; –3 ≤ x ≤ 3
f(x) = –⌊x⌋; –3 ≤ x ≤ 3
f(x) = ⌊x⌋; –3 < x < 3

What is the value of m in the equation 1/2 m - 3/4n=16 when n=8

Money off coupons have been circulated to 300 households. only 2/5 of these were redeemed (used) in the local supermarket to get a free shampoo. what fraction of coupons were unused? (ps: write how you got the answer)

Scenario: a rectangular plot of ground is 5 meters longer than it is wide. its area is 20,000 square meters. question: what equation will you find the dimensions? note: let w represent the width. options: w(w+5)=20,000 w^2=20,000+5 (w(w+5))/2=20,000 w+2(w+5)=20,000