6) A circle has a circumference whose length is
78.53, Find the length of an arc whose
central angle is 90°.

The roots of the function f(x) = x2 – 2x – 3 are shown. what is the missing number?

How do u write a function for the reflection across the y axis

Andy has $310 in his account. each week, w, he withdraws $30 for his expenses. which expression could be used if he wanted to find out how much money he had left after 8 weeks?