Plz help
What is the area of the triangle?

A triangle has a base of 4 inches and height of 5.5 inches.
5 in.2
10 in.2
11 in.2
22 in.2

Part a : solve - vp + 40 < 65 for v . part b : solve 7w - 3r = 15 for r show your work!

What is the difference between regular convex and concave polygons

The number if marbles of different colors stored in a hat is listed below: 4 red marbles 10 green marbles 7 blue marbles. without looking in the hat, dan takes out a marble at random. he replaces the marble and then takes out another marble from the hat. what is the probability that dan takes out a blue marble in both draws?