ANSWER ASAP PLEASE Which two expressions have the same value? Select the two expressions with the same value

A 1/8+ (7/8 + 4/8)

B 1/5 + 7/5 + 4/5

C. 3/5 + (1/2 + 2/5)

D 1/2 + 2

There is a line with slope 1/a going through the point (a, a²). find the equation of the line perpendicular to this line at this point. (don’t let this problem intimidate you! solve the problem as you would if i’d given you specific values. just use variables instead.)

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

100 points, hi, i’m not sure how to get the equation from the graph and table.