Kathleen spent $231 on concert tickets for herself and 11 friends. Each ticket cost the same. Part A: Estimate the cost of each ticket. Write an equation to show your work. Part B: find the exact cost of each ticket.

H(x)=4x2-5x h(-3) what is the answer?

David bought a poster for an art project. the poster is 2.7 feet wide and 3.9 feet tall. what is the area of the poster?

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?