John likes to hike during the summer he can usually hike about 3 miles every hour but when it's really hot he swims in a mountain lakes for a half hour after every 4 miles how long does it take him to hike 9 miles

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?

Abouncy ball is released from a certain height. on the first bounce, it travels 32cm. with each subsequent bounce, it travels 9/10 the distance of the previous bounce. what is the total distance that the ball has traveled when it completes its 25th bounce?

The midpoints of the sides of the large square are joined to form a smaller square. what is the area of the smaller square