a varies directly as the square of b and inversely as the square of c. If a=131 when b=4 and c=7, find a if b=3 and c=9. Round your answer to two decimal places if necessary.

Eileen purchased 3.4 pounds of apples at the total cost of $19.72. if she purchases 6.2 pounds of apples at this store, how much would it cost?

Which of the following correctly justifies statement four of the two column proof? a. corresponding angles theorem b. transitive property of equality c. vertical angle theorem d. substitution property of equality

If you are trying to move an attached term across the equal sign (=), what operation would you use to move it?