What is the inequality for one fourth of the opposite of the difference of five and a number is less than twenty?

Margie is practicing for an upcoming tennis tournament. her first serve is good 20 out of 30 times on average. margie wants to know the estimated probability that her first serve will be good at least four of the next six times she serves. how could she design a simulation for this scenario?

Write as a product of two polynomials. 2(3–b)+5(b–3)^2

Write the equation of the circle centered at (10,-2) with radius 2