Which of the following is a rational number?
a. square root 15
b. square root 16,
c. square root 21,
d. square root 22

Rosa makes a small flower garden outside the clubhouse the area of the garden is 851 square meters if the length of the garden is 23 m what is the width of the garden

Express in the simplest form: (x^2+9x+14/x^2-49) / (3x+6/x^2+x-56)

Sarah used her calculator to find sin 125 degrees. she wrote down sin sin125 degrees.57. how could sarah recognize that her answer is incorrect?