Equivalent to 2a+1/10a-5+10a/4a^2-1

Write the equation for the parabola that has x− intercepts (−2,0) and (4,0) and y− intercept (0,4).

Water flows at a steady rate from a tap. its takes 40 seconds to fill a 4 litre watering can from the tap. the rate at which water flows from the tap is halved. complete: 4 litres into cm3

Each cookie sells for $0.50 sam spent $90 on baking supplies and each cookie cost $0.25 to make how many cookies does sam need to sell before making a profit formula: sales> cost