Can someone help with this qs pls?
4 − (−4)^−3

Calculate -4 to the power of -3 and get -1/64.

Come back to the equation & substitute -4³ as -1/64.

The opposite of -1/64 is +1/64.

Add 4 and 1/64 to get 257/64 (take 64 as the LCM).

maximum area = xy = (16)(32) = 512 ft2

to maximize the area of the garden, the side of the fence parallel to the side of the house should be 32 ft long, and the other two sides should both have length 16 ft.'

source

i think the answer is b