Solve -5x + 5y = 15 and 3x – 2y=-8 by elimination
If someone can help that’d be brilliant

In trapezoid efgh, m∠hef=(4x2+16)∘ and m∠gfe=(5x2+12)∘. find the value of x so that efgh is isosceles.

Jordan rides his bike 6 7/15 miles every day to deliver newspapers and to go to and from school. if his ride to and from school is 4 3/10 miles, how many miles is the trip to deliver newspapers? 1 1/3 1 1/6 2 1/6 2 4/5

1mile equals approximately 1.6 kilometers. which best approximates the number of miles in 6 kilometers?