Can y’all help me on question 27?!

This is the number of parts out of 100, the numerator of a fraction where the denominator is 100. submit

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?

How many lines can be drawn through points j and k? 0 1 2 3