Ineed some one to check this i think its 81

Atriangular field has sides of lengths 21, 39, and 41 yd. find the largest angle. (round your answer to the nearest degree.)

The functions below show the amount of money bella and sweet t had saved after earning money for doing chores. which description best compares the two functions?

As a salesperson you get $50/day and $3.60/each sales you make. if you want to make $60 in one day, how many sales would you need need to make ? a 3b 4c 5d 6 show work.