Find the exact value of sin(20) using the double-angle formula given: sin(0) = -4/5 , π< 0< 3π/2

20 points i need asap

"you know, playing tennis is healthier than watching a tennis match on television," katya remarked to her couch potato brother. in this sentence, healthier is a/an a. superlative. b. comparative. c. positive form. d. adverb.

The last time i bought this product , it cost $20.00 but it looks like it cost 29. 60 today? what is the increase

Ebuka's monthly rent is $750. if ebuka pays the rent late, his landlord charges 4% interest per week that the payment is late. write a function that gives the total cost r(t), in dollars, of ebuka's rent if he pays it t weeks late.