What is the area of the shaded region? Use 3.14 for and round your answer to the nearest tenth.
50.2 cm2
12.6 cm2
6 cm
78.5 cm
10 cm
201.0 cm2

In angle pqr find the measure of

The? half-life of a radioactive substance is 20 years. if you start with some amount of this? substance, what fraction will remain in 120 ? years

What is solution for the following system of equations, 2x+8y=4 and x=-3y+5 1) x=14 y=-3 2) x=2 y=-3 3) x=-3 y=-3 4)x=12 y=5