Athermometer has a percent error of 3%. the actual temperature is 75°f.

select from the drop-down menus to correctly complete the statement.
the thermometer is likely to show the temperature is either °f or °f

I'm at a bookstore with $\$35$ in my pocket and a $20\%$-off coupon. what is the cost of the most expensive book i can buy with my money and the coupon? (assume that there are books of every possible price in the bookstore. it's a large bookstore! )