What is the exact circumference of a circle with a diameter of 8 cm plz me

Write the slope-intercept form of the line that passes through the point (1, 0) and is parallel to x - y = 7. t

Factor the expression using gcf 9b+45

What is the range of the function? f(x)=-2|x+1|? a. all real numbers. b. all real numbers less than or equal to 0. c. all real numbers less than or equal to 1. d. all real numbers greater than or equal to 1