PLEASE HELP To estimate 50% of 196, which of the following steps should you use? Select all that apply.

Round the percent

Round the number

Check for reasonableness

Use a benchmark percent

Use a proportion

Make a graph

There were 816 people at a concert when a band started to play. after each song, only half the people stayed to hear the next song. how many people were left at the concert after x songs? write a function to represent this scenario.

Given ab and cb are tangents of p, and m =10°. what is the measure of abp?

Simplify (8x2 − 1 + 2x3) − (7x3 − 3x2 + 1). −5x3 + 11x2 − 2 5x3 − 11x2 + 2 x3 + 2x2 + x3 x3 − 2x2 − x3