What is the answer to 97 x 2.4

Which expression is equivalent to (3^2)^-2 a.-81 b.-12 c.1/81 d.1/12

Aiden drives to school and back each day. the school is 16 miles from his home. he averages 40 miles per hour on his way to school. if his trip takes 1 hour, at approximately what speed does aiden drive home?

The length of triangle base is 26. a line, which is parallel to the base divides the triangle into two equal area parts. find the length of the segment between triangle legs.