Iwill be marking brainliest for obvious reasons

a cell phone company has a basic monthly plan of $40 plus $0.45 for any minutes used over 700. before receiving his statement, john saw he was charged a total of $48.10. write and solve an equation to determine how many minutes he must have used during the month. be sure to show all of you work and name the variable you use.

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

What expression is equivalent to 42x-56y

In triangles abc and wxy, a=w and b=x which of the following must be true to prove abc=wxy by the aas theorem? a.ab=bc b.bc=xy c.ab=wx d.