What is 3456677890876543223245678899-978796 769*0-1000

Acircle has a radius of 5/6 units and is centered at (3.6, 7.8) write the equation of this circle

Jack has a piece of red ribbon that is two times as long as his piece of blue ribbon. he says that he can use two different equation to find out how long his piece of red ribbon is compared to his piece of blue ribbon is. is he correct? explain his reasoning

Evaluate the expression for the given value of the variable. ∣-4b-8∣+∣-1-b^2 ∣+2b^3 ; b=-2