So If tan of x = -40/9 and x is in Quadrant 2 and sin y = -3/5 and y is in Quadrant 4 How do you find the exact value for cos(x-y) and tan (x+y)

Acylinder has volume 45π and radius 3. what is it’s height?

Sheila wants to bake six muffins but the recipe is for 12 muffins . this means you only need half of the ingredients listed how much of the of each ingredient does she need? one cup and banana chips ,7 tablespoons oil , two eggs, 3/4 cups flour 1/4 cup walnuts show all you work and justify your answer using a baby toulmin.

If, while training for a marathon, you ran 60 miles in 2/3 months, how many miles did you run each month? (assume you ran the same amount each month) write your answer as a whole number, proper fraction, or mixed number in simplest form. you ran __ miles each month.