B. Sharp mental acuity
Mental acuity refers to being mentally sharp. If you're mentally sharp, you have an excellent memory, and you find it easy to complete different tasks. Lack of sleep can effect this.
Perimeter = 2(L + W) = 20 or L + W = 10
And Area = L x W = 24
So with have the SUM "S" of 2 numbers and te PRODUCT "P' of same numbers, then
we can apply te quadratic equation X² -SX + P
X² - 10X + 24 = 0, solve this equation and you'll find L = 6 in and W = 4in
or 4 in x 6 in
