Evaluate the algebraic expression for the given values of x = 3 and Y =4 7 x - 2y-1​

Pls if a cow has a mass of 9×10^2 kilograms, and a blue whale has a mass of 1.8×10^5 kilograms, which of these statements is true?

What is the solution to the equation? k/6.4=8.7 2.3 5.568 15.1 55.68

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.