Thomas went to the toy store. He bought ​yo-yos for ​$ each including tax. How much money did Thomas spend on the​ yo-yos? 2.85
2.90
2.70
2.75

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?

If f(x)=x^3 and g(x)=2x+7 when g(x)=-5

What is the length of the segment, endpoints of which are intersections of parabolas y=x2? 11 4 x? 7 4 and y=? 7 8 x2+x+ 31 8 ?