Jose is having a bake sale. he sells twice as many cupcakes as he does cookies. overall, he sells 60 baked goods. how many of each baked goods did he sell?

9. (y^-5)^10y^10 a. y^-60 b. y^60 c. y^-150 d. y^150 find the simplified form of each expression. 10. (4/7^5)^2 a.8/14^10 b.16/49^25 c.16/49y^10 d.8/14y^25 11. determine if the number 3.43 times 10^-6 is written in scientific notation. if not, explain. a. yes; the number is written scientific notation. b. no; the first factor is not a number between 1 and 10. c. no; it is not written as a number times a power of 10

You have 6 dollars +12 pennies +to quarters + 4 dimes=2 nickels how much do you have

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