Are two straight lines that cross each other at a right angle?

A. Perpendicular

B. Broken

C. Parallel

D. Curved

Derek flips a fair coin 40 times. How many times can he expect heads to appear?

Justin, Cam, and Ben are basketball players. Last game, Justin made 888 out of 111111 shots, Cam made 333 out of 444 shots, and Ben made 555 out of 555 shots. Order the players by their shooting percentage from least to greatest.

Maddie made 3 bracelets on Monday. Each day after that, she made 6 times as many bracelets as the day before. How many bracelets did Maddie make on Friday?

What is 18/60 in simplest form

The sum of the page numbers on the facing pages of a book is 77. What are the page numbers? The page number on the left page is? And the number on the right page is?

1. Given a sequence is defined by the explicit definition tn=n^2+n, find the 4th term of the sequence. (ie t4) A) 4 B) 8 C) 20 D) 1806 2. Given the sequence is defined by the explicit definition tn=2^n-n, find the 5th term of the sequence.

How do you solve 1/2x<13?

Every digits in 798 is greater than any digit in 4325 explain why 4325 is greater than 798

There are 28 students in Mrs. Chung's sixth grade class. This is 10% of all sixth graders in the school. What is the total number of sixth graders in the school?

Explain why the product (3x^-3) (3x^3) is a constant.