Lena is going to cover her entire garden with topsoil. the garden is 36 feet long by 22 feet wide. a bag of topsoil costs $3 and covers 300 square feet of area. how much will the topsoil for lena's garden cost?

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

Gabrielle's age is two times mikhail's age. the sum of their ages is 84. what is mikhail's age?

Captain umaima has a ship, the h. m.s. khan. the ship is two furlongs from the dread pirate nadia and her merciless band of thieves. the captain has probability 3/7 of hitting the pirate ship. the pirate only has one good eye, so she hits the captain's ship with probability 2/5. if both fire their cannons at the same time, what is the probability that the captain hits the pirate ship, but the pirate misses.