Another question I need an answer to since I forgot to put it in my previous one. Worth 50 points this time with a brainliest. This is not a multiple choice. Please help me this is the last one.

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?

Lucy and donavan measured the length of the school garden. lucys measurement is 11.3m and donavans measurement is 113 cm. could both be correct? explain

Is there an x intercept in the equation 60*1.15^x