There are 10 balls numbered 1-10 in a paper bag. Amanda picks out a ball without looking and puts it back. If she does this 3 times, what is the probability that she will pick the number 4 each time?

The sum of two numbers is 86, and their difference is 20. find the two numbers

Angles r and s are complementary. the measure of angle r is 31 degrees. which equation can be used to find angle s?

Manuela claims that and are congruent. which statement best describes her claim? she is incorrect because the segments do not have the same orientation. she is incorrect because the segments do not have the same length. she is correct because the segments have the same length. she is correct because the segments have the same orientation.