Jack and his three siblings made a spinner to decide who has to do each chore. if there are three chores to do, what is the probability that jack will have to do at least one of them? a. 37/64 b. 175/256 c. 7/8 d. 7/16

The price of a coat increased from $78 to $92. what is the price increase percentage?

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

If x is 6, then 7x= a. 13 b. 42 c. 42x d. 76