frisky bought a bicycle for N$552.46.The bicycle was slightly damaged in the shop. The shopkeeper sold the bicycle to frisky at a loss of N$246.70.a)calculate the cost price of the bicycle. b)the shopkeeper had planned to sell the bicycle for N$998.95.how much profit did he lose?

Acircular city park has a sidewalk directly through the middle that is 111 - feet long. if each bag of fertilizer covers 50 square feet, then determine how many bags of fertilizers the parks and recreation department needs to use to cover the circular park. ignore all the sidewalks around and through the park.

Factor the polynomial 4x4 – 20x2 – 3x2 + 15 by grouping. what is the resulting expression? (4x2 + 3)(x2 – 5) (4x2 – 3)(x2 – 5) (4x2 – 5)(x2 + 3) (4x2 + 5)(x2 – 3)

Can someone me with #s 8, 9, and 11. with just one of the three also works. prove using only trig identities.