Write as an equation: When -2 is subtracted from w, the result is 49

Aquantity with an initial value of 3900 decays exponentially at a rate of 35% every hour. what is the value of the quantity after 0.5 days, to the nearest hundredth?

You paid 28.00 for 8 gallons of gasoline. how much would you pay for 15 gallons of gasoline?

In which form is the following function written? y = - 2(x – 3)(x + 5)