When you buy a dozen bagels for $2.39 , you get an additional bagel free. what is your cost per bagel? (round to the nearest cent.) show your work.

If tan2a=cot(a+60), find the value of a, where 2a is an acute angle

Katie wants to collect over 100 seashells. she already has 34 seashells in her collection. each day, she finds 12 more seashells on the beach. katie can use fractions of days to find seashells. write an inequality to determine the number of days, dd, it will take katie to collect over 100 seashells.

What is another way to write the equation 2/3(x+6)=-18?