STD 10 maths

If the roots of the equation 9x2 – (2k – 5)x – 25 = 0 are additive inverse ( opposite),

then k = ………… .

(a) 0 (b) 1 (c) -5/2 (d) 5/2​

Neal buys a board game. he pays for the board game and pays $1.54 in sales tax. the sales tax rate is 5.5%. what is the original price of the board game, before tax

How many square inches are in 60 square feet?

Ken leaves work 20 minutes late. he decides to make up time by taking the toll road instead of side streets. he can travel three times faster by taking the toll road. create an equation to represent his total travel time, including wait time, where x is the number of minutes the drive was expected to take