The measurement of a rectangular dam are: length =60-2x width=2x depth=x/2 determine the volume of the damin terms of x

Ineed with 14, 16, 28 and 36 me. we didn't go over them in class so i don't know what to do.

Afarmer sells 9.5 kilograms of apples and pears at the farmer's market. 4/5 of the weight is the apples and the rest is the pears. how many kilograms of pears did she sell at the farmers market

For problems 29 - 31 the graph of a quadratic function y=ax^2 + bx + c is shown. tell whether the discriminant of ax^2 + bx + c = 0 is positive, negative, or zero.