Match the unknown entries in the two matrices with their correct values helpp

Compare the subtraction problems 6/8 - 5/8 = 1/8 and 6/9 - 7/9 = 1/9 why is the answer to the first problem positive and the answer to the second problem negative

Cone a has a surface area of 384 ft2 and cone b has a surface area of 96 ft? . what is the ratio of their volume?

On the first of each month sasha runs a 5k race she keeps track of her times to track her progress her time in minutes is recorded in the table