How do i evaluate 3 divided by 7 x r + 5 divided by 8 x s when r = 14 and s = 8

Jack did 3/5 of all problems on his weekend homework before sunday. on sunday he solved 1/3 of what was left and the last 4 problems. how many problems were assigned for the weekend?

The functions below show the amount of money bella and sweet t had saved after earning money for doing chores. which description best compares the two functions?

What is the common difference for this arithmetic sequence? -6,-2,2,6,10 a.4 b.5 c.3 d.6