PLEASE HELP ME In the system of equations below, k is a constant. If the system has infinitley many solutions what is the value of k

3x-7y=k
-6x+14y=20

Which expression is equivalent to 16 in exponential form? a) 4 × 4 b) 8 × 2 c) 23 d) 24

Thanh and her crew are building a stage in the shape of a trapezoid for an upcoming festival. the lengths of the parallel sides of the trapezoid are 14 ft and 24 ft. the height of the trapezoid is 12 ft.what is the area of the stage? enter your answer in the box. ft²

Predict which statements are true about the intervals of the continuous function. check all that apply