Can anyone help me pls

Asquare parking lot has 6,400 square meters what is the length in meters

Simplify. (-2)^-3 a. -8 b. -1/8 c. 1/8 d. 8

(03.03 mc) choose the graph below that correctly represents the equation 2x + 4y = 24. (5 points) select one: a. line through the points 0 comma 6 and 12 comma 0 b. line through the points 0 comma negative 6 and 12 comma 0 c. line through the points 0 comma negative 12 and 6 comma 0 d. line through the points 0 comma 12 and 6 comma 0