B.) calculate the perimeter of a square whose area is 56.25cm^2 ? (3 marks).

now, the perimeter of it, is simply the sum of all its sides' lengths, so, recall a square has four equal sides, thus the perimeter is then 7.5+7.5+7.5+7.5.

step-by-step explanation:

from the graph attached below:

domain of graph is the value of x for which the given function profit function p(x) is defined.

(a) the domain represents the number of years for which the outlet will earn a profit.

range of profit function defines the lowest to highest value of profit earned.

(b) the range of this function is (0 , 160 ). for this function, the range represents the outlet's profit earned.