Find the value of each variable. For the circle, the dot represents the center.

a=

(Simplify your answer.)

Aubrey can walk 4 1/2 miles in 1 1/2 hours. What is her average speed?

A professor grades students on 4 tests, a term paper, and a final examination. Each test counts as 15% of the course grade. The term paper counts as 20% of the course grade. The final examination counts as 20% of the course grade.

Compute the average (mean) from the data shown. (round to the nearest tenth) {48, 95, 73, 39, 78, 41, 89, 29, 95}

A triangle has a 5 inch side, and an 8 inch side. Which could be the third side length of the a 3 inches b. 12 inches c. 15 inches d. 18 inches

There were 418 tickets sold for Conrad's piano recital. about many tickets were sold? round to the nearest hundreds

how do you rewrite (x+7) square without parentheses

2 (2/5x + (-5)) = 0.5 (3x+2) - 4

For a field trip 29 students rode in cars and the rest filled 6 buses. How many students were in each bus if 323 students were on the trip.

Sandra read 5 books, Deacon read 6 books, and Breanna read 7 books. One book was read By all 3 children, but every other book was different. How many different books did the children read?

A circle has a diameter of 17 inches. What is the circumference?