What is 2.7% of 197,000? (Please have equation included)

Two times a number plus three times another number equals 4. three times the first number plus four times the other number is 7. find the numbers

Anyone? 15m is what percent of 60m; 3m; 30m; 1.5 km?

Given the quadratic function f(x)=3x^2-24x+49 a. use “completing the squares” to convert the quadratic function into vertex form b. state the vertex c. find the x and y intercepts d. graph the function