If a/b-d=2c/b find the value of c when a=3, b=4 and d=-5 One clue:The answer is not 23/32. I have tried it and it's wrong.
Please explain detailly

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 is this inequality notation? t is less then or equal to 2

Before simplifying, how many terms are there in the expression 2x - 5y + 3 + x?