wo friends have each their own savings, one has $240 and save 5$/week, and the other has $150 and saves $15/week, how many months does it take till they have the same amounts in their saving

Aheated piece of metal cools according to the function c(x) = (.5)x ? 7, where x is measured in hours. a device is added that aids in cooling according to the function h(x) = ? x ? 2. what will be the temperature of the metal after two hours?

Hell . what are the solutions to `10x^2 - 38x - 8 = 0`? is this when i find the factors and use the numbers within the factors to determine the zeros? i hope that made sense lol

With alll of except for the 2 that i did already