Martin completely filled several jars with seashells. each jar held 9 seashells. he had less than 80 seashells. make a list of the total number of seashells he could have in all.

Can any one me with the answers to these questions asap?

Which of the following correctly justifies statement four of the two column proof? a. corresponding angles theorem b. transitive property of equality c. vertical angle theorem d. substitution property of equality

Use the quadratic formula to solve the equation. if necessary, round to the nearest hundredth. x^2 - 20 = x a. 5, 4 b. -5, -4 c. -5, 4 d. 5, -4