Rosie sells her laptop to John and makes a 15% profit. John then sells the laptop to Michael for £391. John makes a 15% loss. How much did John pay for the laptop?

Janet is mixing a 15% glucose solution with a 35% glucose solution. this mixture produces 35 liters of a 19% glucose solution. how many liters of the 15% solution is januet using in the mixture? a. 25 liters c. 28 liters b. 7 liters d. 10 liters

What is 100,000 times 1/100,000, using the standard method of multiplication? write the answer as 10 to a power.

In order for the function to be linear, what must m be and why? m = 22 because the rate of change is 1. m = 20 because the rate of change is 3. m = 22 because the rate of change is -1. m = 20 because the rate of change is -3.