Kayla walks 2 1/4 miles every day. how many miles did she walk altogether in 7 days?

Which expression is equivalent to √ -80?

What is the slope of the line that contains the points (4,8) and (9,8)? what type of line is it?

Fiona races bmx around a circular dirt course. if the radius of the course is 70 meters, what is the total distance fiona covers in two laps of the race? a. about 30,772 meters b. about 15,386 meters c. about 879.2 meters d. about 439.6 meters e. about 219.8 meters23 points hurry