There were 350 students competing at the regional spelling bee. during the first round 20% of the contestants were eliminated. how many contestants were still in the competition at the beginning of the second round?

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

To determine the number of deer in a forest a forest ranger tags 280 and releases them back

What is the factored form of the following expressions? d^2 – 13d + 36