What is the definition of perpendicular lines?

A. lines that intersect at right angles

B. lines that intersect at straight angles

C. lines in the same plane that do not intersect

D. lines in different planes that do not intersect

A town uses positive numbers to track increases in population and negative numbers to track decreases in population. The population has decreased by 30 residents over the past 5 years. The same number of residents left each year.

Which statement is true about the parentheses in this expression? [24 - (15 + 2) + 3] - 9

Convert 2/8 into a decimal

4+3b = b-5 How can I solve that

Find three decimals that make the number sentence true ...

Find the volume of the figure: 7ft, 2ft, 1ft, 6ft, 7ft, 6ft, 2ft, 1ft,

What is one of the solutions to the following system? y-3=x x^2-6x+13=y A. (-5, 2) B. (-2, 1) C. (2, 5) D. (8, 5)

Casey was twice as old as his sister 3 years ago. Now he is 5 years older than his sister. How old is Casey?

A pilot flies 441 kilometers in 31.5 minutes. what is the speed of the air plane?

What is the sum 3/4+5/16 A) 14 16 B) 17 16 C) 53 16 D) 7 16 those are fractions btw