A. Gwen chooses two cards from the pile to make a two-digit number. She uses the first card as the first digit in the number and the second card as the second digit. What is the probability that Gwen
will make the number 21?

Need on this one asap im almost done with this subject

Tamar is measuring the sides and angles of tuv to determine whether it is congruent to the triangle below. which pair of measurements would eliminate the possibility that the triangles are congruent

Arefrigeration system at your company uses temperature sensors fixed to read celsius (°c) values, but the system operators in your control room understand only the fahrenheit scale. you have been asked to make a fahrenheit (°f) label for the high temperature alarm, which is set to ring whenever the system temperature rises above –10°c. what fahrenheit value should you write on the label?