Combine the like terms to create an equivalent expression. 4q+3+2q−1

4q+3+2q−1

The like terms are 4q & 2q as well as 3 & -1

Add them together: 4q + 2q = 6q

And: 3 + (-1) = 2

The simplified expression is 6q+2

6q+2, variables are considered as 1 unless they are given a specific value, making the answer once you combine all the numbers and variables 6q+2.

Hope this helped! :D

the arc length is found by finding the circumference of the full circle (2xpixradius) and then dividing by 4 to find just one quarter of the circle (90 degrees).