assume that an economy with the MPC of 0.9 there is a new investment of $2 billion as a result of the new investment income will be what

Mary spent a total of $323.14 for a party.she spent a total of $200.22 on food,plus an additional $30.73 for each hour of the party.how long was the party?

What is the equation of this graphed line? enter your answer in slope-intercept form in the box.

Astuntman jumping off a 20-m-high building is modeled by the equation h=20-5t^2, where t is the same in seconds. a high-speed camera is ready to film him between 15m and 10m above the ground. for which interval of time should the camera film him?