Bobby claims that Peter started with 21 cards. Which statements are true about verifying Bobby’s claim? Check all that apply. A. Substitute 21 for x in the original equation.
B. Substitute any number for x in the original equation.
C. Bobby’s claim that x = 21 is correct.
D. The result of verifying Bobby’s work is 9 = 9.
E. The result of verifying Bobby’s work is 21 = 21.

What could explain what happened when the time was equal to 120 minutes

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

You love to play soccer! you make a shot at the net 8 times during a game! of those 8 attempts, you score twice. what percent of the time did you score?