X^4+2x^3-×-1; [-3,-2] average rates of change

Jose predicted that he would sell 48 umbrellas. he actually sold 72 umbrellas. what are the values of a and b in the table below? round to the nearest tenth if necessary

The two square pyramids are similar. find the total volume of both pyramids if the ratio of their surface areas is 9/16

Arestaurant added a new outdoor section that was 8 feet wide and 6 feet long. what is the area of their new outdoor section