Which of the following is a rational number?

-√15

-√16

-√21

-√22

12 bags of plaster do 54m squared, how many bags are needed for 36m squared

Which relationships would most likely be casual

Find the value of p: 14 = - 7 + p/6

Stan worked 4 years less than Marco. This year Stan has worked 29 years. If b is how long Marco worked, the equation b - 4 = 29 respresents this situation. How can you get the variable alone on one side of the equation?

How do I mark brained on here

What is the main reason the US civil war was started

How do you show 2+3i is a root of x^2-4x+13

Consider the equation ax^2 bx 5=0 where a, b, c are rational numbers and the quadratic has 2 distinct zeros. if one zero is irrational, the other 0 is

9. Which relation represents a function? A. { (-1, 3), (0, - 1), (1, 3), (2, 5) } B. { (1, - 1), (-1, 0), (1, 1), (3, 2) } C. { (5, - 1), (3, - 1), (4, 1), (5, 2) } D. { (-4, 2), (1, - 2), (0, 0), (1, 1) }

Elisa withdrew $20 at a time from her bank account and withdrew a total of $140. Francis withdrew $45 at a time from his bank account and withdrew a total of $270. Who made the greater number of withdrawals? Justify you answer