Can someone help me? It's urgent and thank you!

Two variables, x and y, vary inversely, and x=12 when y=4. what is the value of y when x=3?

What is the sum of these mixed numbers 4 2/3+ 3 1/9

The triangle shown has a hypotenuse with a length of 13 feet. the measure of angle a is 20 degrees. and the measure of angle b is 70 degrees. which of the following is closest to the length, in feet, of line segment ac? no need to use a calculator to find the trig numbers. each function is listed below. 4.4 5 12.2 35.7