Construct isosceles triangle ABC such that AB = AC = 10 cm and CB = 9 cm. Measure and write down the size of angle ABC.

Acompany is testing in comparing to lightbulb designs the box plot shows the number of hours that each lightbulb design last before burning out which statement is best supported by the information of the plot

Solve the equation - 2(m -30) = -6m a-15 b-13 c-8 d8

[10 points, algebra 2]according to my answer key the restrictions are -1 and 4. but why not positive 1?