Which of the following statements is true of 9 and -9?

they are a zero pair.
they are opposite numbers
they have the same absolute value
they are equivalent

multiple choice

Match each equation with the operation you can use to solve for the variable. 1 subtract 10 2 divide by 10 3add 18 4add 10 5 subtact 18 6multiply by 5. 7multiply by 10. a 5 = 10p b p + 10 = 18 c p + 18 = 5 d 5p = 10

Which shows the correct solution of the equation 1/2a+2/3b=50, when b=30?

What unit of been sure would be appropriate for the volume of a sphere with a radius of 2 meters