What are the coordinates of the point (−9, 10) after being reflected across the x-axis on a coordinate plane? * (−9, −10)
(−9, 10)
(9, −10)
(9, 10)

Which is the equation of a line perpendicular to the line with the equation 3x+4y=8

Suppose that one doll house uses the 1 inch scale, meaning that 1 inch on the doll house corresponds to 1/2 foot for life-sized objects. if the doll house is 108 inches wide, what is the width of the full-sized house that it's modeled after? in inches and feet.

Aflower has 26 chromosomes. to create a new flower,how many would a sperm cell have what is called?