Suppose that r varies directly with s and inversely with t, and r=2 when s=3 and t=12. What is the value of r when s=5 and t=4?

I already know the answer but I'd like to know how to find it.

Mrs Smith plants 5000 seeds per year. If 1/4 of them die and 1/5 lost in transport. How many plants would be left to sell

Which expressions are equivalent to 3g+6 (-g + (-5)) ? Answer choices: A) 9g+30 B) - 3g-5. C) Non of the above

Jacky bakes some biscuits. he keeps 3/7 of the biscuits in container a, 5/8 the remainder in container b, and the rest in container c. there are 21 more biscuits in a than c. how many biscuits does jacky bake?

What Is 1/4 Of 3/5? (In A Fraction)

True false test consists of 10 questions how many ways can a student mark one answer to each answer

Write as a fraction in lowest terms: 0.126126125 = a/b

Find the average rate of change for f (x) = x2 - 8x + 15 from x = 0 to x = 4. A) - 2 B) - 4 C) 2 D) 4

If one gallon of gas costs $3.50 how much would 3,5, and 7 gallons cost?

to mail a cardboard box, you measure its size and mass. It is 55cm long, 25cm wide and 20 cm high. The mass of the box is 4kg. What is the density of the boxes in grams over cm squared

Select the action you would use to solve x/4 = 16. Then select the property that justifies that action