Andrea can rollerblade faster than most skateboarders, she can go 250 feet in 10 seconds. At this rate, how many miles can she ride in 1 hour (mph)? (remember, 1-mile=5,280 feet).
this unit is on unit conversions pleas help and provide expressions please i'm desperate and please show your work as well!

#1-20 state whether the angles are alternate interior, alternate exterior, vertical, or corresponding angles.

The graph and table shows the relationship between y, the number of words jean has typed for her essay and x, the number of minutes she has been typing on the computer. according to the line of best fit, about how many words will jean have typed when she completes 60 minutes of typing? 2,500 2,750 3,000 3,250

Angles r and s are complementary. the measure of angle r is 31 degrees. which equation can be used to find angle s?