Darren is trying to improve his typing speed. on his first practice assignment, he types 198 words in 6 minutes. on his second assignment, he types 248 words in 8 minutes. did his speed improve? tell how you know. use unit rate and show work .

Determine the number of girls in a math class with 87 boys if there are 25 girls for every 75 boys

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

Scenario: a rectangular plot of ground is 5 meters longer than it is wide. its area is 20,000 square meters. question: what equation will you find the dimensions? note: let w represent the width. options: w(w+5)=20,000 w^2=20,000+5 (w(w+5))/2=20,000 w+2(w+5)=20,000