Simplify:
(5r6s3)(2r2s4)
[?]r[] s []

Select the quadratic that has root x = 8 and x = -5

65% of students in your school participate in at least one after school activity. if there are 980 students in you school, how many do not participate in an after school activity?

Which expression is equivalent to 16 in exponential form? a) 4 × 4 b) 8 × 2 c) 23 d) 24