Calculate the mass of NaOH in 0.2 moles of NaOH

Big boi and travis scott are performing at the super bowl. travis scott is 62 years younger than twice big boi’s age. the sum of their ages is 70 years old. use b to represent big boi’s age. write and solve an equation.

Worth 30 points! in this diagram, both polygons are regular. what is the value, in degrees, of the sum of the measures of angles abc and abd?

Evaluate 8j -k+148j−k+14 when j=0.25j=0.25 and k=1k=1.