Formula is used when calculating:

a.
area of a rectangle
c.
area of a circle
b.
perimeter of a rectangle
d.
circumference of a circle

select the best answer from the choices provided

a
b
c
d

Which rational number could be graphed between -4 and -5

Determine the required value of the missing probability to make the distribution a discrete probability distribution. x p(x) 3 0.23 4 ? 5 0.51 6 0.08 p(4) = nothing  (type an integer or a decimal.)

Will mark brainliest! ( explain the answer too, it can be one sentence)