What is m to the power of 2 minus 11m minus 60 in product/sum method

Afruit stand has to decide what to charge for their produce. they need $10 for 4 apples and 4 oranges. they also need $15 for 6 apples and 6 oranges. we put this information into a system of linear equations. can we find a unique price for an apple and an orange?

Ametal rod is 2/5 meters long. it will be cut into pieces that are each 1/30 meters long. how many pieces will be made from the rod?

6cm10 cma conical paper cup has dimensions as shown in the diagram. how much water can the cup hold when full?