Solve for the following indicated variable and show all work.
a= 2pir^2 + 2pirh solve for positive r.

Find the midpoint of the segment with the given endpoint k(-4,4) and l(6,12)

Organic apples are on special for $1.50 per pound. does total cost vary inversely or directly with the number of pounds purchased? find the cost of 3.4 pounds of apples. a. inversely: $5.10 b. directly; $5.10 c. inversely: $2.27 d. directly; $2.27

Write the equations in logarithmic form 9^4=6,561