Evaluate x^2+9/v^2 for each of the given values. what is the value of the expression when x=-3

7. if the value of x varies directly with the value of y, and x = 3 when y = 21. what is the valu y, and x = 3 when y = 21. what is the value of x when y = 105?

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?

Write the point-slope form of the line passing through (2, -12) and parallel to y=3x.