Will mark brainliest ! < 3 sylvain spent a total of 18 hours on english and math homework over the last 3 weeks. he spent twice as much time on english than on math. let x represent the number of hours spent on english and y represent the number of hours spent on math. x+y=18 x=2y what is the solution of the system of equations? a)(12, 6) b)(6, 12) c)(9, 9) d)(15, 3)lolll i got the answer it was a.

Which representation has a constant of variation of -2.5

Find the zeros of each function. f(x) = x^2 + 5x - 6

Circle a has a diameter of 7 inches, a circumference of 21.98 inches, and an area of 38.465 square inches. the diameter of circle b is 6 inches, the circumference is 18.84 inches, and the area is 28.26 square inches. part a: using the formula for circumference, solve for the value of pi for each circle. (4 points) part b: use the formula for area and solve for the value of pi for each circle. (4 points)