Can someone show me how to do this step by step please

What is the length of the missing leg in this right triangle? 18 mm 24 mm 26 mm 32 mm

Triangle knm is what is true about the sides of knm

What is the volume of a cardboard box that measures 1 inch by 5 inches by 7 inches? the volume of the cardboard is cubic inches. enter your answer as the number that correctly fills in the blank in the previous sentence. if necessary, round your answer to the nearest tenth, like this: 42.5