The Product of 4 and z is the same as 16

Give me the equations of two lines that have the same slope but are not parallel.

Afamily has five members. a mom, a dad, two sisters, & a brother. the family lines up single file. what is the probabillity that the mom is at the front of the line

Amachine part consists of a half sphere and a cylinder, as shown in the figure. the total volume of the part is π cubic inches.