What is 1+3+1+1+1+1+1+1+1+1+1+1+1+1+1+1

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)

The scatterplot represents the total fee for hours renting a bike. the line of best fit for the data is y = 6.855x + 10.215. which table shows the correct residual values for the data set?

Solve for x where 0 equation: cot^2x+2cotx+1=0