A right triangle has a leg measurement of 15 mm and a hypotenuse of 18 mm. What is the measurement of the other leg, rounded to the nearest tenth?

A. 9.9 mm

B. 12.1 mm

C. 10.2 mm

D. 11.3 mm

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

What is the approximate circumference of the circle shown below?

Antonia and carla have an equivalant percentage of green marbles in their bags of marbles. antonia has 4 green marbles and 16 total matbles. if carla has 10 green marbles , how many total marbles does carla have